* 2.6.29-rc8-git5: Reported regressions from 2.6.28 @ 2009-03-21 16:28 Rafael J. Wysocki 2009-03-21 20:05 ` Ingo Molnar 0 siblings, 1 reply; 4+ messages in thread From: Rafael J. Wysocki @ 2009-03-21 16:28 UTC (permalink / raw) To: Linux Kernel Mailing List Cc: Adrian Bunk, Andrew Morton, Linus Torvalds, Natalie Protasevich, Kernel Testers List, Network Development, Linux ACPI, Linux PM List, Linux SCSI List This message contains a list of some regressions from 2.6.28, 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 2.6.28, 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 ---------------------------------------- 2009-03-21 128 29 26 2009-03-14 124 36 32 2009-03-03 108 33 28 2009-02-24 95 32 24 2009-02-14 85 33 27 2009-02-08 82 45 36 2009-02-04 66 51 39 2009-01-20 38 35 27 2009-01-11 13 13 10 Unresolved regressions ---------------------- Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12910 Subject : Wierd iteractions with CPUFREQ Submitter : Dmitry Torokhov <dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-03-19 5:57 (3 days old) References : http://marc.info/?l=linux-kernel&m=123744265002098&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12909 Subject : boot/kernel init duration regression from 2.6.28 Submitter : CaT <cat-LJ1TwQYPT6cQrrorzV6ljw@public.gmane.org> Date : 2009-03-16 10:25 (6 days old) References : http://marc.info/?l=linux-kernel&m=123720083515950&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12908 Subject : acpi_ex_extract_from_field -- div by zero Submitter : Jiri Slaby <jirislaby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-03-15 10:47 (7 days old) References : http://marc.info/?l=linux-kernel&m=123711408225013&w=4 Handled-By : Lin Ming <ming.m.lin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12872 Subject : pwc mmap always fails with EAGAIN Submitter : Markus <M4rkusXXL-S0/GAf8tV78@public.gmane.org> Date : 2009-03-14 16:42 (8 days old) References : http://marc.info/?l=linux-kernel&m=123704902201378&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12871 Subject : usb bluetooth crashes system Submitter : Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org> Date : 2009-03-10 11:23 (12 days old) References : http://marc.info/?l=linux-kernel&m=123668450400940&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12867 Subject : 2.6.29-rc7 broke r8169 MAC on Thecus n2100 ARM board Submitter : Mikael Pettersson <mikpe-1zs4UD6AkMk@public.gmane.org> Date : 2009-03-09 20:29 (13 days old) References : http://marc.info/?l=linux-kernel&m=123663065403760&w=4 Handled-By : Francois Romieu <romieu-W8zweXLXuWQS+FvcfC7Uqw@public.gmane.org> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12861 Subject : Xorg fails to start "Failed to allocate space for kernel memory manager" Submitter : Emil Karlson <jkarlson-kf+aQKke1yb1KXRcyAk9cg@public.gmane.org> Date : 2009-03-12 12:06 (10 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12856 Subject : Thinkpad freezes with X.org and acpi=rsdt Submitter : Maciej Piechotka <uzytkownik2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-03-11 16:46 (11 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12846 Subject : Regression issue with kernel 2.6.29-rc6-git1: high power consumption during sleep Submitter : Raymond Wooninck <tittiatcoke-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-03-09 08:18 (13 days old) First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1fb25cb8b83e85f5bf1a4adb3c9a254c4ce92405 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12836 Subject : 2.6.29-rc breaks STD using Intel 945 Submitter : Rolf Eike Beer <eike-kernel-F+mm6HnICJmzQB+pC5nmwQ@public.gmane.org> Date : 2009-03-04 19:20 (18 days old) References : http://marc.info/?l=linux-kernel&m=123619451406192&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12809 Subject : iozone regression with 2.6.29-rc6 Submitter : Lin Ming <ming.m.lin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Date : 2009-02-27 9:13 (23 days old) First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cf6e7d83bf334cc5916137862c920a97aabc018 References : http://marc.info/?l=linux-kernel&m=123572630504360&w=4 http://lkml.org/lkml/2009/3/14/265 Handled-By : Wu Fengguang <fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12808 Subject : Suspend regression with 2.6.29-rc Submitter : Tino Keitel <tino.keitel-Mmb7MZpHnFY@public.gmane.org> Date : 2009-02-24 19:08 (26 days old) References : http://marc.info/?l=linux-kernel&m=123550257312112&w=4 Handled-By : Rafael J. Wysocki <rjw-KKrjLPT3xs0@public.gmane.org> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12800 Subject : x86 PAT invalid vm_insert_pfn assumptions Submitter : Thomas Hellstrom <thellstrom-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org> Date : 2009-03-02 01:40 (20 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12792 Subject : 2.6.29-rc6-git4 boot failure Submitter : Sachin P. Sant <sachinp-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org> Date : 2009-02-27 23:19 (23 days old) References : http://ozlabs.org/pipermail/linuxppc-dev/2009-February/068771.html Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12778 Subject : suspend regression from 29rc5 to 29rc6 Submitter : yury <urykhy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-02-25 09:25 (25 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12771 Subject : Oops in i915_gem_flush Submitter : Kalev Lember <kalev-KfhB8dnw0QSuvFJfX82//w@public.gmane.org> Date : 2009-02-24 08:35 (26 days old) Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12765 Subject : i915 VT switch with AIGLX causes X lock up Submitter : Sitsofe Wheeler <sitsofe-/E1597aS9LQAvxtiuMwx3w@public.gmane.org> Date : 2009-02-21 15:38 (29 days old) First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=14d200c5e5bd19219d930bbb9a5a22758c8f5bec References : http://marc.info/?l=linux-kernel&m=123523074304955&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12763 Subject : Different cpu MHz values for processor0 and processor1 Submitter : Matthew A. Bockol <mbockol-dmoCqaWXHRX2fBVCVOL8/A@public.gmane.org> Date : 2009-02-21 5:42 (29 days old) References : http://marc.info/?l=linux-kernel&m=123519687807246&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12705 Subject : X200: Brightness broken since 2.6.29-rc4-58-g4c098bc Submitter : Nico Schottelius <nico-linux-20090213-xuaVFQXs+5hIG4jRRZ66WA@public.gmane.org> Date : 2009-02-13 9:33 (37 days old) First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e806b4957412bf472d826bd8cc571da041248799 References : http://marc.info/?l=linux-kernel&m=123451768406825&w=4 http://marc.info/?l=linux-kernel&m=123479975503827&w=2 Handled-By : Len Brown <lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12681 Subject : s2ram: fails to wake up on Acer Extensa 4220 (SMP disabled) Submitter : Orivej Desh <smpuj-5URONGGNgjI@public.gmane.org> Date : 2009-02-09 13:01 (41 days old) First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cfe62c8010ac56e1bd3827e30386a87cc2f3594 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12670 Subject : BUG: unable to handle kernel paging request at pin_to_kill+0x21 Submitter : Alessandro Bono <alessandro.bono-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-02-08 11:04 (42 days old) References : http://marc.info/?l=linux-kernel&m=123409113223833&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12668 Subject : USB flash disk surprise disconnect Submitter : Vegard Nossum <vegard.nossum-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-02-08 10:21 (42 days old) References : http://marc.info/?l=linux-kernel&m=123408851821292&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12574 Subject : possible circular locking dependency detected Submitter : Michael S. Tsirkin <m.s.tsirkin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-01-29 11:35 (52 days old) References : http://lkml.org/lkml/2009/2/9/205 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12499 Subject : Problem with using bluetooth adaper connected to usb port Submitter : Maciej Rutecki <maciej.rutecki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-01-13 18:34 (68 days old) References : http://marc.info/?l=linux-kernel&m=123187185426236&w=4 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12490 Subject : ath5k related kernel panic in 2.6.29-rc1 Submitter : Sergey S. Kostyliov <rathamahata-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date : 2009-01-12 7:38 (69 days old) References : http://marc.info/?l=linux-kernel&m=123174591509586&w=4 Handled-By : Bob Copeland <me-aXfl/3sk2vNUbtYUoyoikg@public.gmane.org> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12419 Subject : possible circular locking dependency on i915 dma Submitter : Wang Chen <wangchen-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> Date : 2009-01-08 14:11 (73 days old) First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=546b0974c39657017407c86fe79811100b60700d References : http://marc.info/?l=linux-kernel&m=123142399720125&w=4 Regressions with patches ------------------------ Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12870 Subject : 2.6.29-rc "TKIP: replay detected" regression Submitter : Hugh Dickins <hugh-DTz5qymZ9yRBDgjK7y7TUQ@public.gmane.org> Date : 2009-03-11 12:07 (11 days old) References : http://marc.info/?l=linux-kernel&m=123677337219148&w=4 Handled-By : John W. Linville <linville-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org> Patch : http://marc.info/?l=linux-wireless&m=123678463704691&w=2 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12671 Subject : uvc_status_cleanup(): undefined reference to `input_unregister_device' Submitter : Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org> Date : 2009-02-08 14:58 (42 days old) References : http://marc.info/?l=linux-kernel&m=123410529909318&w=4 Handled-By : Randy Dunlap <randy.dunlap-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org> Patch : http://lkml.org/lkml/2009/2/15/172 Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12667 Subject : Badness at kernel/time/timekeeping.c:98 in pmud (timekeeping_suspended) Submitter : Paul Collins <paul-dsjeNyW6Qm/D+ROgJ3VA+kB+6BGkLq7r@public.gmane.org> Date : 2009-01-21 7:15 (60 days old) First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1c5745aa380efb6417b5681104b007c8612fb496 References : http://marc.info/?l=linux-kernel&m=123252215315106&w=4 Handled-By : Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org> Patch : http://lkml.org/lkml/2009/2/16/78 For details, please visit the bug entries and follow the links given in references. As you can see, there is a Bugzilla entry for each of the listed regressions. There also is a Bugzilla entry used for tracking the regressions from 2.6.28, unresolved as well as resolved, at: http://bugzilla.kernel.org/show_bug.cgi?id=12398 Please let me know if there are any Bugzilla entries that should be added to the list in there. Thanks, Rafael ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.29-rc8-git5: Reported regressions from 2.6.28 2009-03-21 16:28 2.6.29-rc8-git5: Reported regressions from 2.6.28 Rafael J. Wysocki @ 2009-03-21 20:05 ` Ingo Molnar 2009-03-23 0:57 ` Wu Fengguang 0 siblings, 1 reply; 4+ messages in thread From: Ingo Molnar @ 2009-03-21 20:05 UTC (permalink / raw) To: Rafael J. Wysocki Cc: Linux Kernel Mailing List, Adrian Bunk, Andrew Morton, Linus Torvalds, Natalie Protasevich, Kernel Testers List, Network Development, Linux ACPI, Linux PM List, Linux SCSI List, Wu Fengguang * Rafael J. Wysocki <rjw@sisk.pl> wrote: > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12809 > Subject : iozone regression with 2.6.29-rc6 > Submitter : Lin Ming <ming.m.lin@intel.com> > Date : 2009-02-27 9:13 (23 days old) > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cf6e7d83bf334cc5916137862c920a97aabc018 > References : http://marc.info/?l=linux-kernel&m=123572630504360&w=4 > http://lkml.org/lkml/2009/3/14/265 > Handled-By : Wu Fengguang <fengguang.wu@intel.com> I think this was tracked back to the effective halving of dirty_ratio by 1cf6e7d83 ("mm: task dirty accounting fix") and doubling the ratio fixed the iozone regression. > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12800 > Subject : x86 PAT invalid vm_insert_pfn assumptions > Submitter : Thomas Hellstrom <thellstrom@vmware.com> > Date : 2009-03-02 01:40 (20 days old) fix queued up for .30: 895791d: VM, x86, PAT: add a new vm flag to track full pfnmap at mmap 4bb9c5c: VM, x86, PAT: Change is_linear_pfn_mapping to not use vm_pgoff > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12763 > Subject : Different cpu MHz values for processor0 and processor1 > Submitter : Matthew A. Bockol <mbockol@carleton.edu> > Date : 2009-02-21 5:42 (29 days old) > References : http://marc.info/?l=linux-kernel&m=123519687807246&w=4 first-bad-commit: d96f94c: ACPI: Enable bit 11 in _PDC to advertise hw coord Ingo ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.29-rc8-git5: Reported regressions from 2.6.28 2009-03-21 20:05 ` Ingo Molnar @ 2009-03-23 0:57 ` Wu Fengguang 2009-03-23 16:23 ` Linus Torvalds 0 siblings, 1 reply; 4+ messages in thread From: Wu Fengguang @ 2009-03-23 0:57 UTC (permalink / raw) To: Ingo Molnar Cc: Rafael J. Wysocki, Linux Kernel Mailing List, Adrian Bunk, Andrew Morton, Linus Torvalds, Natalie Protasevich, Kernel Testers List, Network Development, Linux ACPI, Linux PM List, Linux SCSI List, Nick Piggin, Peter Zijlstra On Sun, Mar 22, 2009 at 04:05:34AM +0800, Ingo Molnar wrote: > > * Rafael J. Wysocki <rjw@sisk.pl> wrote: > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12809 > > Subject : iozone regression with 2.6.29-rc6 > > Submitter : Lin Ming <ming.m.lin@intel.com> > > Date : 2009-02-27 9:13 (23 days old) > > First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1cf6e7d83bf334cc5916137862c920a97aabc018 > > References : http://marc.info/?l=linux-kernel&m=123572630504360&w=4 > > http://lkml.org/lkml/2009/3/14/265 > > Handled-By : Wu Fengguang <fengguang.wu@intel.com> > > I think this was tracked back to the effective halving of > dirty_ratio by 1cf6e7d83 ("mm: task dirty accounting fix") and > doubling the ratio fixed the iozone regression. Yes, exactly. The patch for fixing this regression is trivial. However it may be better to revert 1cf6e7d83 for 2.6.29, and merge 1cf6e7d83 together with this patch for 2.6.30-rc1. This allows a larger window for testing out the possible impacts on other workloads. Thanks, Fengguang --- writeback: double the dirty thresholds Enlarge default dirty ratios from 5/10 to 10/20. This fixes [Bug #12809] iozone regression with 2.6.29-rc6. The iozone benchmarks are performed on a 1200M file, with 8GB ram. iozone -i 0 -i 1 -i 2 -i 3 -i 4 -r 4k -s 64k -s 512m -s 1200m -b tmp.xls iozone -B -r 4k -s 64k -s 512m -s 1200m -b tmp.xls The performance regression is triggered by commit 1cf6e7d83bf3(mm: task dirty accounting fix), which makes more correct/thorough dirty accounting. The default 5/10 dirty ratios were picked (a) with the old dirty logic and (b) largely at random and (c) designed to be aggressive. In particular, that (a) means that having fixed some of the dirty accounting, maybe the real bug is now that it was always too aggressive, just hidden by an accounting issue. The enlarged 10/20 dirty ratios are just about enough to fix the regression. Cc: Nick Piggin <npiggin@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Linus Torvalds <torvalds@linux-foundation.org> Reported-by: "Lin, Ming M" <ming.m.lin@intel.com> Tested-by: "Lin, Ming M" <ming.m.lin@intel.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> --- mm/page-writeback.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- mm.orig/mm/page-writeback.c +++ mm/mm/page-writeback.c @@ -66,7 +66,7 @@ static inline long sync_writeback_pages( /* * Start background writeback (via pdflush) at this percentage */ -int dirty_background_ratio = 5; +int dirty_background_ratio = 10; /* * dirty_background_bytes starts at 0 (disabled) so that it is a function of @@ -83,7 +83,7 @@ int vm_highmem_is_dirtyable; /* * The generator of dirty data starts writeback at this percentage */ -int vm_dirty_ratio = 10; +int vm_dirty_ratio = 20; /* * vm_dirty_bytes starts at 0 (disabled) so that it is a function of ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.29-rc8-git5: Reported regressions from 2.6.28 2009-03-23 0:57 ` Wu Fengguang @ 2009-03-23 16:23 ` Linus Torvalds 0 siblings, 0 replies; 4+ messages in thread From: Linus Torvalds @ 2009-03-23 16:23 UTC (permalink / raw) To: Wu Fengguang Cc: Ingo Molnar, Rafael J. Wysocki, Linux Kernel Mailing List, Adrian Bunk, Andrew Morton, Natalie Protasevich, Kernel Testers List, Network Development, Linux ACPI, Linux PM List, Linux SCSI List, Nick Piggin, Peter Zijlstra On Mon, 23 Mar 2009, Wu Fengguang wrote: > > > > I think this was tracked back to the effective halving of > > dirty_ratio by 1cf6e7d83 ("mm: task dirty accounting fix") and > > doubling the ratio fixed the iozone regression. > > Yes, exactly. The patch for fixing this regression is trivial. I was planning on applying that patch only after 2.6.29 is out, and then if there are no surprising side effects and nobody complains, we'd then back-port it into stable. Linus ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-03-23 16:23 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2009-03-21 16:28 2.6.29-rc8-git5: Reported regressions from 2.6.28 Rafael J. Wysocki 2009-03-21 20:05 ` Ingo Molnar 2009-03-23 0:57 ` Wu Fengguang 2009-03-23 16:23 ` Linus Torvalds
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