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This message contains a list of some regressions from 2.6.25, for which there are no fixes in the mainline I know of. If any of them have been fixed already, please let me know. If you know of any other unresolved regressions from 2.6.25, please let me know either and I'll add them to the list. Also, please let me know if any of the entries below are invalid. Each entry from the list will be sent additionally in an automatic reply to this message with CCs to the people involved in reporting and handling the issue. Listed regressions statistics: Date Total Pending Unresolved ---------------------------------------- 2008-05-11 53 46 34 Unresolved regressions ---------------------- Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10679 Subject : 2.6.26-rc1 regression: e5e1d3cb20034a3cbcfff1f0bae12201aa2ce17e breaks artsd Submitter : Roberto Oppedisano <roberto.oppedisano@infracom.it> Date : 2008-05-11 20:15 (1 days old) References : http://lkml.org/lkml/2008/5/11/118 Handled-By : Stas Sergeev <stsp@aknet.ru> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10678 Subject : 2.6.26-rc1: warnings from sysfs, bluetooth related Submitter : Pavel Machek <pavel@suse.cz> Date : 2008-05-11 16:19 (1 days old) References : http://marc.info/?l=linux-kernel&amp;m=121052279002112&amp;w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10677 Subject : Error in save_stack_trace() on x86_64? Submitter : Vegard Nossum <vegard.nossum@gmail.com> Date : 2008-05-11 13:09 (1 days old) References : http://marc.info/?l=linux-kernel&amp;m=121051140821821&amp;w=4 Handled-By : Arjan van de Ven <arjan@linux.intel.com> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10676 Subject : 2.6.26-rc1 on x86: ld: warning: dot moved backwards before `.text' Submitter : Mikael Pettersson <mikpe@it.uu.se> Date : 2008-05-10 20:18 (2 days old) References : ...
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10649 Subject : lxfb driver regression Submitter : Andres Salomon <dilinger@queued.net> Date : 2008-05-07 21:08 (5 days old) References : http://lkml.org/lkml/2008/5/7/441 Handled-By : Jens Rottmann <JRottmann@lippert-at.de> Patch : http://lkml.org/lkml/2008/5/8/207 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10557 Subject : [regression] latest git couse kernel oops. Submitter : Alexey Fisher <bug-track@fisher-privat.net> Date : 2008-04-26 00:19 (16 days old) --
Changeset in question is a memory corruptor fixed almost immediately afterwards. So if that's where bisect _ends_, I'm afraid that this is not the end of story. --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10633 Subject : Problem mounting ext2 using ext3 (or any failure to mount a partition) leads to an oops. Submitter : Geert Uytterhoeven <geert@linux-m68k.org> Date : 2008-05-05 17:12 (7 days old) References : http://www.ussg.iu.edu/hypermail/linux/kernel/0805.0/2281.html Handled-By : Theodore Tso <tytso@mit.edu> Jan Kara <jack@suse.cz> Patch : http://marc.info/?l=linux-kernel&amp;m=121006820018050&amp;w=2 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10676 Subject : 2.6.26-rc1 on x86: ld: warning: dot moved backwards before `.text' Submitter : Mikael Pettersson <mikpe@it.uu.se> Date : 2008-05-10 20:18 (2 days old) References : http://marc.info/?l=linux-kernel&amp;m=121045079732174&amp;w=4 Handled-By : H. Peter Anvin <hpa@zytor.com> Sam Ravnborg <sam@ravnborg.org> Cyrill Gorcunov <gorcunov@gmail.com> Pavel Machek <pavel@suse.cz> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10495 Subject : Voyager phys_cpu_present_map compile error Submitter : Adrian Bunk <adrian.bunk@movial.fi> Date : 2008-04-20 17:12 (22 days old) References : http://lkml.org/lkml/2008/4/20/259 --
I think this should be fixed by James's patch [1]. 1. http://lkml.org/lkml/2008/5/9/188 -- Hi, I'm a .signature virus, please copy/paste me to help me spread all over the world. --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10673 Subject : build issue #380 for v2.6.26-rc1-279-g28a4acb : mach-voyager: multiple definition of `phys_cpu_present_map' Submitter : Toralf Förster <toralf.foerster@gmx.de> Date : 2008-05-09 9:13 (3 days old) References : http://marc.info/?l=linux-kernel&amp;m=121032450804476&amp;w=4 Handled-By : James Bottomley <James.Bottomley@HansenPartnership.com> Ingo Molnar <mingo@elte.hu> WANG Cong <xiyou.wangcong@gmail.com> Patch : http://marc.info/?l=linux-kernel&amp;m=121042819904974&amp;w=4 --
Already marked as a duplicate. Thanks, Rafael --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10606 Subject : 2.6.26-rc1 regression: ACPI fails to load SDT. - Dell M1530 Submitter : NIgel Cunningham <nigel@suspend2.net> Date : 2008-05-05 18:11 (7 days old) --
Hi. Patch is available and verified, but not yet in Mainline as far as I know. Regards, Nigel --
Hi. http://bugzilla.kernel.org/attachment.cgi?id=16061&action=view Regards, Nigel --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10648 Subject : CONFIG_PRINTK_TIME broken on git HEAD ? Submitter : Gabriel C <nix.or.die@googlemail.com> Date : 2008-05-08 00:26 (4 days old) References : http://lkml.org/lkml/2008/5/7/352 Handled-By : Peter Zijlstra <a.p.zijlstra@chello.nl> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10631 Subject : Please revert 709f744 (x86: bitops asm constraint fixes) Submitter : Simon Holm Thøgersen <odie@cs.aau.dk> Date : 2005-05-05 09:35 (1103 days old) References : http://www.ussg.iu.edu/hypermail/linux/kernel/0805.0/1963.html Handled-By : Ingo Molnar <mingo@elte.hu> Jan Beulich <jbeulich@novell.com> Thomas Gleixner <tglx@linutronix.de> Patch : http://www.ussg.iu.edu/hypermail/linux/kernel/0805.0/2661.html --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10651 Subject : 2.6.26-git: ata_piix link is slow to respond regression. Submitter : Soeren Sonnenburg <kernel@nn7.de> Date : 2008-05-08 19:30 (4 days old) References : http://lkml.org/lkml/2008/5/8/290 http://thread.gmane.org/gmane.linux.ide/31317/focus=31349 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10641 Subject : [BUG] 2.6.26-rc1-git4 - task blocked on powerpc for more than 120 seconds Submitter : Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Date : 2008-05-07 13:34 (5 days old) References : http://marc.info/?l=linux-kernel&amp;m=121016673607188&amp;w=2 Handled-By : Adrian Bunk <bunk@kernel.org> --
I'm not handling this one.
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
--
Thanks for letting me know, I've updated the bug entry to reflect this (well, let's see if the new mechanics in the script works ;-)). Thanks, Rafael --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10671 Subject : [2.6.26-rc1] WARNING: at drivers/base/sys.c:183 Submitter : Tilman Schmidt <tilman@imap.cc> Date : 2008-05-11 18:18 (1 days old) References : http://marc.info/?l=linux-kernel&amp;m=121052996610776&amp;w=4 Handled-By : Dave Jones <davej@codemonkey.org.uk> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10621 Subject : WARNING: at include/linux/blkdev.h:443 Submitter : Prakash Punnoor <prakash@punnoor.de> Date : 2008-05-03 11:51 (9 days old) References : http://lkml.org/lkml/2008/5/3/43 Handled-By : Jens Axboe <jens.axboe@oracle.com> Neil Brown <neilb@suse.de> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10629 Subject : 2.6.26-rc1-$sha1: RIP __d_lookup+0x8c/0x160 Submitter : Alexey Dobriyan <adobriyan@gmail.com> Date : 2008-05-05 09:59 (7 days old) References : http://lkml.org/lkml/2008/5/5/28 Handled-By : Paul E. McKenney <paulmck@linux.vnet.ibm.com> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10622 Subject : [BUG 2.6.26-rc1] scsi (or sysfs or vm?) oops in sr_probe() Submitter : Jeff Garzik <jeff@garzik.org> Date : 2008-05-04 07:22 (8 days old) References : http://lkml.org/lkml/2008/5/4/76 Handled-By : James Bottomley <James.Bottomley@hansenpartnership.com> Dan Williams <dan.j.williams@intel.com> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10620 Subject : X does not resume (intel chipset) Submitter : Romano Giannetti <romano.giannetti@gmail.com> Date : 2008-05-08 06:53 (4 days old) References : http://lkml.org/lkml/2008/5/8/378 --
My symptoms were not identical to the ones which Romano reported (which in turn were not identical to the ones which Hugh reported), but Hugh's patch did fix things for me; so Romano might want to give this a try: http://lkml.org/lkml/2008/5/13/188 - Ted --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10493 Subject : mips BCM47XX compile error Submitter : Adrian Bunk <adrian.bunk@movial.fi> Date : 2008-04-20 17:07 (22 days old) References : http://lkml.org/lkml/2008/4/20/34 --
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
--
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10638 Subject : sysbench+mysql(oltp, readonly) 30% regression with 2.6.26-rc1 Submitter : Zhang, Yanmin <yanmin_zhang@linux.intel.com> Date : 2008-05-07 4:55 (5 days old) References : http://marc.info/?l=linux-kernel&amp;m=121013681527052&amp;w=2 Handled-By : Ingo Molnar <mingo@elte.hu> Patch : http://marc.info/?l=linux-kernel&amp;m=121015292616802&amp;w=2 --
this entry should still be listed, revert is queued up. Ingo --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10650 Subject : 2.6.26-rcX VC console scrolling regression Submitter : David Miller <davem@davemloft.net> Date : 2008-05-07 21:46 (5 days old) References : http://lkml.org/lkml/2008/5/8/9 Handled-By : Jan Engelhardt <jengelh@medozas.de> --
akpm has the patch in -mm. (And how do you select regression reports? I do not think computer AI was that sophisticated yet to read full English.) --
Manually, more or less. Thanks, Rafael --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10634 Subject : volanoMark regression with kernel 2.6.26-rc1 Submitter : Zhang, Yanmin <yanmin_zhang@linux.intel.com> Date : 2008-05-06 2:06 (6 days old) References : http://marc.info/?l=linux-kernel&amp;m=121003968414287&amp;w=2 Handled-By : Dhaval Giani <dhaval@linux.vnet.ibm.com> Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> Ingo Molnar <mingo@elte.hu> Peter Zijlstra <a.p.zijlstra@chello.nl> Patch : http://marc.info/?l=linux-kernel&amp;m=121015292616788&amp;w=2 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10582 Subject : INFO: task pdflush:27505 blocked for more than 120 seconds. Submitter : Plamen Petrov <pvp-lsts@fs.ru.acad.bg> Date : 2008-05-01 02:30 (11 days old) Handled-By : Dave Chinner <dgc@sgi.com> Patch : http://bugzilla.kernel.org/attachment.cgi?id=15999 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10627 Subject : 2.6.26-rc1 c67x00-ll-hpi compilation failure Submitter : Samuel Thibault <samuel.thibault@ens-lyon.org> Date : 2008-05-04 13:04 (8 days old) References : http://lkml.org/lkml/2008/5/4/84 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10619 Subject : [regression] ata2: device not ready (errno=-16), forcing hardreset Submitter : Alexey Fisher <bug-track@fisher-privat.net> Date : 2008-05-08 06:49 (4 days old) --
Fixed by 005b1f7495e812b99b73de5adbc73afd7a1cbcaf --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10643 Subject : s390 kvm_virtio.c build error Submitter : Adrian Bunk <bunk@kernel.org> Date : 2008-05-08 14:05 (4 days old) References : http://lkml.org/lkml/2008/5/3/155 Handled-By : Heiko Carstens <heiko.carstens@de.ibm.com> Patch : several nearly identical patches, KVM tree should bring one --
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
--
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10616 Subject : Horrendous Audio Stutter - current git Submitter : Parag Warudkar <parag.warudkar@gmail.com> Date : 2008-05-02 20:14 (10 days old) References : http://lkml.org/lkml/2008/5/1/440 Handled-By : Peter Zijlstra <peterz@infradead.org> Patch : http://lkml.org/lkml/2008/5/2/126 --
Still present both in Linus tree and sched-devel - root cause is not yet well understood per Ingo. Worked around by disabling GROUP_SCHED stuff by default (commit aac6abca858386438d9a7233c3471d2ecfa2f704 ). Parag --
What causes this regression?
Is this commit 018d6db4cb5bbdcd65424a16f2dcca692ed32ae4
(sched: re-do "sched: fix fair sleepers") that had already been reverted
in 2.6.25 for causing such regressions or is this caused by a different
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
--
Both current -git and sched-devel have this problem - that means it's unrelated to the commit you refer to unless it was reintroduced in a different form but same effect. Parag --
It was changed, not reverted.
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
--
No, it's not that commit. That commit also caused a (less severe and fairly hard to reproduce) latency issue, but that has now been fixed by the patch listed in the BR (committed as a992241de614dd2b7c97a9ba64e28c0e563f19bf). The issue reported by Parag as "Horrendous Audio Stutter" (and confirmed by me) is much more severe and is indeed related to group scheduling. The group scheduling related issue disappeared for me with -rc1 after reverting the following two commits (as suggested by Mike Galbraith): - 7ba2e74ab5a0518bc953042952dd165724bc70c9 sched: debug: show a weight tree - 8f1bc385cfbab474db6c27b5af1e439614f3025c sched: fair: weight calculations Given the confusing and partially incorrect information in this BR, it seems best to me to close it and open a new one for the issue reported by Parag. Cheers, FJP --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10674 Subject : /proc/kallsyms broken in 2.6.26-rc1-git6 Submitter : Andi Kleen <andi@firstfloor.org> Date : 2008-05-09 17:41 (3 days old) References : http://marc.info/?l=linux-kernel&amp;m=121035508420184&amp;w=4 Handled-By : Paulo Marques <pmarques@grupopie.com> Alexey Dobriyan <adobriyan@gmail.com> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10613 Subject : BIOS bug, APIC version is 0 for CPU#0! Submitter : Gabriel C <nix.or.die@googlemail.com> Date : 2008-05-03 15:11 (9 days old) References : http://www.ussg.iu.edu/hypermail/linux/kernel/0805.0/1258.html --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10632 Subject : [2.6.26-rc1] Output to console stops when booted without 'vga=791' Submitter : Frans Pop <elendil@planet.nl> Date : 2008-05-05 13:51 (7 days old) References : http://www.ussg.iu.edu/hypermail/linux/kernel/0805.0/2080.html --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10640 Subject : audio skipping on 2.6.26-rc1 Submitter : Miklos Szeredi <miklos@szeredi.hu> Date : 2008-05-07 7:56 (5 days old) References : http://marc.info/?l=linux-kernel&amp;m=121014707707781&amp;w=2 Handled-By : Ingo Molnar <mingo@elte.hu> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10670 Subject : BUG: linux-2.6.26-rc1 oops at thinkpad_acpi:led_set_status Submitter : Karol Lewandowski <lmctlx@gmail.com> Date : 2008-05-08 23:12 (4 days old) References : http://marc.info/?l=linux-kernel&amp;m=121028841527994&amp;w=4 Handled-By : Henrique de Moraes Holschuh <hmh@hmh.eng.br> --
It is related to: 1. Debian gcc in stable being used to compile the kernel 2. unmodified led_set_status() function on thinkpad-acpi.c 3. kernel compiled in "optimize for size" mode 4. stack frames NOT being enabled. Change one, and the bug is gone. AFAIK, it means Debian stable's gcc is generating bad code. But I need help from someone with good knowledge of gcc to give us the final word on it. I might be doing something stupid in thinkpad-acpi.c, after all. I will attach the relevant data to the bug report. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh --
No, your code is buggy:
#define TPACPI_LED_NUMLEDS 8
static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS];
static int led_write(char *buf)
{
...
if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7)
return -EINVAL;
...
rc = led_set_status(led, s);
...
}
static int led_set_status(unsigned int led, enum led_status_t ledstatus)
{
...
switch (led_supported) {
...
case TPACPI_LED_OLD:
/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */
-----> led = 1 << led;
rc = ec_write(TPACPI_LED_EC_HLMS, led);
if (rc >= 0)
rc = ec_write(TPACPI_LED_EC_HLBL,
led * led_exp_hlbl[ledstatus]);
if (rc >= 0)
rc = ec_write(TPACPI_LED_EC_HLCL,
led * led_exp_hlcl[ledstatus]);
break;
...
if (!rc)
tpacpi_led_state_cache[led] = ledstatus;
... ^^^
}
According to the assembler code "led" is in register EBX, and in the
trace the value of EBX is 0x80.
0x80 = 1 << 7
What happens when you write to tpacpi_led_state_cache[0x80] is
undefined, and it's not a surprise that random changes let the
bug seem to disappear.
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
--
ARGH. Thanks. Will fix ASAP. This is really one of those cases where Indeed. Thanks Adrian. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh --
Patch ready, tested by the bug submitter, and sent to Len Brown for merging through the acpi-test tree. A copy of the patch is also in the bugzilla report. I will tag the report as CODE_FIX when Len accepts the patch, and close the bugzilla report when the patch reaches mainline. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10615 Subject : Oops with strace_test Submitter : Eric Sesterhenn <snakebyte@gmx.de> Date : 2008-04-30 14:12 (12 days old) References : http://lkml.org/lkml/2008/4/30/162 Handled-By : Suresh Siddha <suresh.b.siddha@intel.com> Patch : http://lkml.org/lkml/2008/5/7/225 --
fixes by: fd3c3ed5d1e3ceb37635cbe6d220ab94aae0781d Thanks, tglx --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10623 Subject : k8-bus_64.c(?) spams dmesg in 2.6.26-rc1 Submitter : Jeff Garzik <jeff@garzik.org> Date : 2008-05-04 07:28 (8 days old) References : http://lkml.org/lkml/2008/5/4/78 Handled-By : Yinghai Lu <yhlu.kernel@gmail.com> --
fixed by: 0646153921892cc7a81320a6920beaca06b3e9f0 Thanks, tglx --
This one has been closed already. Thanks, Rafael --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10624 Subject : DVB build issue Submitter : Alistair John Strachan <alistair@devzero.co.uk> Date : 2008-05-03 22:47 (9 days old) References : http://lkml.org/lkml/2008/5/3/247 Handled-By : Mauro Carvalho Chehab <mchehab@infradead.org> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10642 Subject : general protection fault: 0000 [1] PREEMPT SMP DEBUG_PAGEALLOC Submitter : Zdenek Kabelac <zdenek.kabelac@gmail.com> Date : 2008-05-07 16:03 (5 days old) References : http://lkml.org/lkml/2008/5/7/48 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10598 Subject : Huawei CDMA PCMCIA card oops Submitter : Pavel Kysilka <p.kysilka@aegis.cz> Date : 2008-05-03 06:38 (9 days old) --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10669 Subject : ACPI: kmemcheck: Caught 16-bit read from freed memory (f7c12ec6) Submitter : Vegard Nossum <vegard.nossum@gmail.com> Date : 2008-05-06 16:09 (6 days old) References : http://marc.info/?l=linux-acpi&amp;m=121009034825514&amp;w=4 Handled-By : Lin Ming <ming.m.lin@intel.com> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10678 Subject : 2.6.26-rc1: warnings from sysfs, bluetooth related Submitter : Pavel Machek <pavel@suse.cz> Date : 2008-05-11 16:19 (1 days old) References : http://marc.info/?l=linux-kernel&amp;m=121052279002112&amp;w=4 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10672 Subject : 2.6.26-rc1 regression: ISA DMA broken (bisected) Submitter : Rene Herman <rene.herman@keyaccess.nl> Date : 2008-05-09 1:37 (3 days old) References : http://marc.info/?l=linux-kernel&amp;m=121029711005560&amp;w=4 Handled-By : Takashi Iwai <tiwai@suse.de> Patch : http://marc.info/?l=linux-kernel&amp;m=121032355203154&amp;w=4 --
Patch is queued for the next pull. Thanks, tglx --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10639 Subject : parisc DISCONTIGMEM compile breakage Submitter : Adrian Bunk <bunk@kernel.org> Date : 2008-05-08 13:52 (4 days old) Handled-By : Mel Gorman <mel@csn.ul.ie> --
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
--
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10630 Subject : USB devices plugged into dock are not discoverred until reload of ehci-hcd Submitter : Lukas Hejtmanek <xhejtman@ics.muni.cz> Date : 2008-05-05 10:02 (7 days old) References : http://lkml.org/lkml/2008/5/5/77 --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10628 Subject : 2.6.26-rc1-git1 -- trying to get vblank count for disabled pipe 0 Submitter : Miles Lane <miles.lane@gmail.com> Date : 2008-05-04 21:12 (8 days old) References : http://lkml.org/lkml/2008/5/4/309 Handled-By : Jesse Barnes <jbarnes@virtuousgeek.org> --
I will check asap. I am pretty busy with unpacking boxes after moving. --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10677 Subject : Error in save_stack_trace() on x86_64? Submitter : Vegard Nossum <vegard.nossum@gmail.com> Date : 2008-05-11 13:09 (1 days old) References : http://marc.info/?l=linux-kernel&amp;m=121051140821821&amp;w=4 Handled-By : Arjan van de Ven <arjan@linux.intel.com> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10645 Subject : 2.6.26-rc1 lost half the RAM on UltraSPARC 5 Submitter : Mikael Pettersson <mikpe@it.uu.se> Date : 2008-05-07 20:36 (5 days old) References : http://lkml.org/lkml/2008/5/7/204 Handled-By : David Miller <davem@davemloft.net> --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10675 Subject : ppc compile failure (__flush_icache_range etc undeclared) Submitter : Meelis Roos <mroos@linux.ee> Date : 2008-05-10 11:51 (2 days old) References : http://marc.info/?l=linux-kernel&amp;m=121042037427529&amp;w=4 Handled-By : Josh Boyer <jwboyer@linux.vnet.ibm.com> Segher Boessenkool <segher@kernel.crashing.org> Patch : http://ozlabs.org/pipermail/linuxppc-dev/2008-May/056007.html http://ozlabs.org/pipermail/linuxppc-dev/2008-May/056008.html --
Patches were merged upstream yesterday and this specific compile error does not happen any more. However, there are 2 page-related link errors, now that it got to linking stage: ERROR: "copy_page" [fs/fuse/fuse.ko] undefined! ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined! Should I report these as different errors or is is related enough? -- Meelis Roos (mroos@linux.ee) --
This message has been generated automatically as a part of a report of recent regressions. The following bug entry is on the current list of known regressions from 2.6.25. Please verify if it still should be listed. Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10679 Subject : 2.6.26-rc1 regression: e5e1d3cb20034a3cbcfff1f0bae12201aa2ce17e breaks artsd Submitter : Roberto Oppedisano <roberto.oppedisano@infracom.it> Date : 2008-05-11 20:15 (1 days old) References : http://lkml.org/lkml/2008/5/11/118 Handled-By : Stas Sergeev <stsp@aknet.ru> --
At Sun, 11 May 2008 22:04:16 +0200 (CEST), It's no regression but just a problem of a new driver. The reporter must have added the new config (CONFIG_SND_PCSP=[y,m]) explicitly. --
People who include this driver (either because they added it thinking it wouldn't do much), or because their distro compiles lots of stuff as module, could potentially get surprised, if it renumbers how the soundcards are enumerated. On my system, my sound card ended up going from hw:0 to hw:1, which given my ~/.asoundrc, meant that sound appeared to be broken with errors such as this: aplay: set_params:900: Sample format non available Once I edited by ~/.asoundrc file to use hw:1 instead of hw:0 the problem went away, so it's really not a kernel _bug_ per se, but the result might be surprising. Maybe there should be a quick warning in the Kconfig file? It's not that big of a deal, but I did end up spending quite a bit of time trying to track down what I initially thought was a regression. Regards, - Ted --
At Wed, 14 May 2008 17:20:11 -0400, Sounds reasonable. To where should it be added, BTW? Little people seem to care about Kconfig help texts, and an extra comment block (with depends on SND_PCSP) could be annoying... thanks, Takashi --
That's a good question. A note that including including this module could potentially cause sound cards to be renumbered might be reasonable, since I suspect most users (and most application programs!) have been accustomed to only having one sound card, and so building this module may cause sound cards to be renumbered in Kconfig would at least be a start. I know this wouldn't help users of distro kernels, but this would at least be one way of warning distro maintainers to think twice about enabling it as a module. BTW, what *is* the utility of this card, and how do you use it? I haven't been able to figure out how to use it do anything entertaining at all. Any attempts to use it on my system just lead to various confusing error messages. Also, BTW, it might be nice to remove the following hunk of text from drivers/sound/Kconfig: I'm told that even without a sound card, you can make your computer say more than an occasional beep, by programming the PC speaker. Kernel patches and supporting utilities to do that are in the pcsp package, available at <ftp://ftp.infradead.org/pub/pcsp/>. What's there at the above URL is for the 2.2 and 2.4 kernels, and the utilities at pcsnd-kit.tar.gz don't work (and didn't compile until I futzed with them slightly). So I'm still rather puzzled how to make the snd-pcsp actually do anything useful, unless it simply doesn't work on my Thinkpad. (Is it normal that the sound volume levels reported by alsamixer can be muted or unmounted, but always report 0, and can't be adjusted up?) - Ted --
At Thu, 15 May 2008 09:06:54 -0400, It looks like a problem in the recent alsa-lib. This driver works fine without dmix, e.g. "aplay -Dplughw:1 foo.wav" works. It can be adjusted via alsa-lib softvol plugin. That is, the volume attenuation is done in the user-space, not in the driver. thanks, Takashi --
Hello. It is actually a problem in a non-recent alsa-lib. With alsa-lib from hg it works fine, but breaks with 1.0.16. The commit that introduced an incompatibility is this one: http://hg-mirror.alsa-project.org/alsa-kernel/diff/26b0243ab4fa/drivers/pcsp/pcsp_lib.c I certainly was not considering the maintenance problems it creates. :( Perhaps should we revert this commit for now, and reintroduce after the next alsa-lib release? FYI, the alsa-lib fix is this one: http://hg-mirror.alsa-project.org/alsa-lib/diff/8a980469cd71/src/conf/cards/PC-Speaker... The problem happened because the softvol plugin doesn't support 8bit formats. So the above config change was needed. --
Hello. The attached patch adds back the compatibility code, allowing the driver to work with older alsa-libs. The removal was premature, it breaks the real-life configs, I am sorry about that. Takashi, could you please apply? It is a straight-forward revert of: http://hg-mirror.alsa-project.org/alsa-kernel/diff/26b0243ab4fa/drivers/pcsp/pcsp_lib.c
Thanks. Probably .26 material; many people will likely just disable the driver upon not seeing it work (and not re-enable it later also, meaning it might be a very largely unused driver) otherwise. Rene. --
On Thu, May 15, 2008 at 06:36:29PM +0200, Takashi Iwai wrote: > At Thu, 15 May 2008 09:06:54 -0400, > Theodore Tso wrote: > > > > On Thu, May 15, 2008 at 07:41:06AM +0200, Takashi Iwai wrote: > > > Sounds reasonable. To where should it be added, BTW? > > > Little people seem to care about Kconfig help texts, and an extra > > > comment block (with depends on SND_PCSP) could be annoying... > > > > That's a good question. A note that including including this module > > could potentially cause sound cards to be renumbered might be > > reasonable, since I suspect most users (and most application > > programs!) have been accustomed to only having one sound card, and so > > building this module may cause sound cards to be renumbered in Kconfig > > would at least be a start. > > Yes. > > > I know this wouldn't help users of distro kernels, but this would at > > least be one way of warning distro maintainers to think twice about > > enabling it as a module. That arrived in my inbox slightly to late :) > Well, yeah, for distro kernels, it's then a problem of distributors :) From todays Fedora kernel changelog :- * Sat May 17 2008 Dave Jones <davej@redhat.com> - Disable CONFIG_SND_PCSP (#447039) Problem solved :-) More seriously, it doesn't seem that there's any way we can build this driver modular without it screwing up already working systems unless we cripple its MODULE_ALIAS to not autoload, allowing users who care about it (which will be in the minority anyway) to add it manually. Dave -- http://www.codemonkey.org.uk --
Hello. Maybe it is possible to adjust the /etc/modprobe.d/modprobe.conf.dist of module-init-tools and add there something like the following? options snd-pcsp index=10 It will then never became a default driver. --
On Sun, May 18, 2008 at 01:02:20AM +0400, Stas Sergeev wrote: > Hello. > > Dave Jones wrote: > > More seriously, it doesn't seem that there's any way we can build > > this driver modular without it screwing up already working systems > > unless we cripple its MODULE_ALIAS to not autoload, allowing users > Maybe it is possible to adjust the > /etc/modprobe.d/modprobe.conf.dist > of module-init-tools and add there > something like the following? > options snd-pcsp index=10 > It will then never became a default > driver. Unless someone has 10 sound cards :-) (Sounds bizarre, but I never tire of seeing some of the creative situations our users get themselves into). Something like this is probably the only real supportable way to do it though. It would be great if alsa took something like -1 to mean 'never make this default'. But until that lands in a module-init-tools update, we're kind of stuck. Dave -- http://www.codemonkey.org.uk --
Hello. -1 seems to be already reserved for "use first free slot", but maybe it would be nice to reserve some value for the "movable" index. For example, the index -2 can mean "use the first free slot, but move to the next one when some other driver is registering with -1 or explicitly to that slot". Of course I have no idea whether this is possible and acceptable, but maybe Well, they won't take 10 or any other value I guess... --
... and for the obvious reasons this can't work. --
Hello. Actually, I have just upgraded f8->f9, and guess what? Lost the sound... And not because of snd-pcsp, but rather because snd-hda-intel started to take the first slot and snd-intel8x0 takes the second. On f8 snd-hda-intel have never been loaded for me at all. I don't need it, it finds a HDA chip on an ATI video board, which it never did before. So... it doesn't look like this problem is specific to snd-pcsp. Anyone can get into that trouble it seems. --
At Sun, 18 May 2008 07:13:07 +0400, You can better use slots option for snd module instead of specifying index in each driver for 2.6.25 or later kernels. That is, options snd slots=snd-intel8x0,snd-hda-intel will assign the specified drivers in the first two slots. And this means also that these two slots are reserved. The other drivers, e.g. a hotplugged usb-audio, won't be assigned in these slots even usb-audio is loaded before intel8x0. See ALSA-Configuration.txt for details. Takashi --
Hello. I guess so, and in the description string we can probably add something That's because it is a bit broken in alsa-lib right now, more details and the fix here: Yeah - that old driver never worked with alsa anyway, so that removal is It will be handled properly by default with the next alsa-lib release. But the trivial fix on the above URL should work too. --
I don't know if this would be considered too ugly a suggestion to put in the Kconfig description, but the suggestion in: http://lkml.org/lkml/2008/5/11/172 To put the following in /etc/modprobe.conf: options snd-pcsp index=2 Would probably avoid confusion for most users. It's more than a little bit hackish, and I imagine I can imagine hotplug/udev fanatics throwing up all over their keyboard, but short of having udev rules that run around editing user's ~/.asoundrc files, or creating some kind of system wide naming scheme so that people can use stable names in their alsa config files, this is going to be an, ah, "interesting" problem for various sound applications to deal with. - Ted --
Hello. By description I did actually mean a menu string, not a help text. In any case, here's what I mean, in an attached patch. PS: please let us know whether the new PC-Speaker.conf allowed you to get any sound from it.
I tried replacing it, but I'm still getting silence when I use "aplay -D plughw:0,0 /usr/share/sounds/login.wav". If I use "aplay -D hw:0,0", I still get the "aplay: set_params:900: Sample format non available" error message. This is with Ubuntu Gutsy; for a variety of reasons, I haven't yet updated my primary laptop to Hardy yet. I can try booting a bleeding edge kernel on my Hardy machine and see whether it works any better there. - Ted --
Hello. You don't need to specify anything with the fixed conf. You probably even _should_ not. Could you please just try "aplay /usr/share/sounds/login.wav" or mpg123 or anything else the most usual way you do? Oh, and it would be best to remove for the moment the custom /etc/asound.conf Well, yeah, it would be nice to have alsa-lib 1.0.16, which one is on Gutsy? The older ones may not support that driver even with the good config. PS: your messages are a bit strange. When I press "Reply to All" in a thunderbird mailer, it sets all the e-mail addresses as "To:". And it includes my own address. And it includes your address twice. This is weird. I am fixing that by hands. With all other messages, by pressing "reply to all", it composes the message with all addresses set to "Cc:", and only one is set to "To:", with my own address not included at all --
OK, with my ~/.asoundrc file moved out of the way (but with the fixed config file installed): # aplay /usr/share/sounds/login.wav ALSA lib pcm_direct.c:901:(snd_pcm_direct_initialize_slave) requested or auto-format is not available ALSA lib pcm_dmix.c:876:(snd_pcm_dmix_open) unable to initialize slave # aplay -D hw:0,0 /usr/share/sounds/login.wav Playing WAVE '/usr/share/sounds/login.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo aplay: set_params:900: Sample format non available # aplay -D plughw:0 /usr/share/sounds/login.wav Playing WAVE '/usr/share/sounds/login.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo <no sound, but aplay sits there as if it was sending sound to a muted speaker and exits after approximately the amount of time for the wav file would take to play> Is moving ~/.asoundrc out of the way sufficient? Or do I need to reboot or logout/login again to clear something? I don't think there 1.0.14. Yeah, it's over 12 months old..... Hmm, I don't know. I'm not setting a reply-to header. My e-mail messages do have an SMTP envelope from field of tytso@thunk.org, but that shouldn't be visible to MUA's. (It just means that MTA's send bounce messages to tytso@thunk.org, which I need to do since my outgoing e-mail path goes through thunk.org, and if I didn't do I might trip certain spam filters which check to see if the domain of the SMTP "MAIL FROM" matches the domain of the sending SMTP server.) In any case, my outgoing RFC 822 message headers on my end looks like this: To: Stas Sergeev <stsp@aknet.ru> Cc: Takashi Iwai <tiwai@suse.de>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Roberto Oppedisano <roberto.oppedisano@infracom.it> Bcc: tytso@mit.edu Subject: Re: [patch] snd-pcsp: adjust help texts to frighten users Reply-To: In-Reply-To: <482C99A4.8030201@aknet.ru> It might be interesting to see what you receive it on your end. --
Hello. Takashi, could you please apply the attached patch? It makes the snd-pcsp help text to alert the user about the possible problems.
| Greg KH | Og dreams of kernels |
| Jens Axboe | [PATCH 31/33] Fusion: sg chaining support |
| Arnd Bergmann | Re: finding your own dead "CONFIG_" variables |
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| Tony Breeds | [LGUEST] Look in object dir for .config |
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| Matthias Lederhofer | [PATCH 4/7] introduce GIT_WORK_TREE to specify the work tree |
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