Messages in this thread | | | Date | Sun, 01 Jul 2007 01:33:14 +0200 | Subject | Re: [possible regression] 2.6.22 reiserfs/libata sporadically hangs on resume from hibernation | From | Michal Piotrowski <> |
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Andrey Borzenkov pisze: > On Sunday 01 July 2007, Rafael J. Wysocki wrote: >> On Saturday, 30 June 2007 06:59, Andrey Borzenkov wrote: >>> Since 2.6.18 I do not have suspend to RAM; now I am starting to lose >>> suspend to disk :) >>> >>> Environment - vanilla kernel (2.6.22-rc6 currently + squashfs + single >>> pata_ali patch to switch off DMA on CD-ROM), single root on reiserfs, >>> libata with pata_ali driver. >>> >>> Until 2.6.22-rc I never had problems with hibernation. With 2.6.22-rc >>> system hung at least once in every rcX. Up to rc6 those lockups were >>> absolutely silent (black screen without reaction to any key). In rc6 I >>> just got something different. After resume I got on screem: >>> >>> swsusp: Marking nosave pages: 000000000009f000-0000000000100000 >>> swsusp: Basic memory bitmaps created >>> swsusp: Basic memory bitmaps freed >>> >>> After that it just sits there doing nothing. Ther was brief sound of HDD >>> but I suspect it was related more to power-on. System was responding to >>> power-on button press: >>> >>> ACPI Error (event-0305): No installed handler for fixed event [00000002 >>> 20070125] >>> >>> And SysRq was functioning. >> That probably means that there's a deadlock somewhere in there. >> >>> Unfortunately I do not have serial console so I >>> copy manually stacks from several last screens of output; I have tried to >>> make a photo but right now my kbluetooth is refusing to work at all so I >>> cannot transfer them :( (but I suspect quality would be too bad anyway) >>> >>> laptop_mode D >>> io_schedule+0xe/0x20 >> Looks suspicious to me. Can you identify what line of code this points to? >> > > If you could explain how to ...
gdb vmlinux
(gdb) l *io_schedule+0xe
Regards, Michal
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