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Date: Sat, 18 Apr 2009 13:57:53 +0100 From: Alan Jenkins <alan-jenkins@...fmail.co.uk> To: "Rafael J. Wysocki" <rjw@...k.pl> CC: Linus Torvalds <torvalds@...ux-foundation.org>, Jens Axboe <jens.axboe@...cle.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Kernel Testers List <kernel-testers@...r.kernel.org> Subject: Re: [Bug #13058] First hibernation attempt fails Rafael J. Wysocki wrote: > On Saturday 18 April 2009, Alan Jenkins wrote: > >> Linus Torvalds wrote: >> >>> On Fri, 17 Apr 2009, Rafael J. Wysocki wrote: >>> >>> >>>> Can you please try to reproduce the problem with the appended debug patch >>>> applied and send the output of dmesg to me? >>>> >>>> >>> Maybe something like this instead (or in addition to). >>> >>> It does "show_mem()" when memory shrinking fails. It will show a _lot_ of >>> data. >>> >>> Untested, but trivial. >>> >>> Linus >>> --- >>> >>> >> Ok, I applied both your and Rafael's debug patches. dmesg attached. >> >> After the failed hibernation, I noticed my touchpad wasn't working. But >> I think that's something else. I had another go and couldn't reproduce >> that. It's happened to me once before while testing 2.6.30-; I've also >> had the keyboard stop working at least once. I'm hoping it's the same >> bug as "20 ACPI interrupts per second on EEEPC" bug. It could be >> overloading my bug-ridden EC, which also acts as the keyboard controller. >> > > Thanks for testing! > > Clearly, sc.nr_reclaimed is reset in each iteration of the loop in > shrink_all_memory(): > > [ 61.135207] PM: Shrinking memory... <6>before: sc.nr_reclaimed = 0 > [ 61.180993] pass = 0, prio = 12, sc.nr_reclaimed = 0 > [ 61.181004] pass = 0, prio = 11, sc.nr_reclaimed = 0 > [ 61.181014] pass = 0, prio = 10, sc.nr_reclaimed = 0 > [ 61.181024] pass = 0, prio = 9, sc.nr_reclaimed = 0 > [ 61.181033] pass = 0, prio = 8, sc.nr_reclaimed = 0 > [ 61.181043] pass = 0, prio = 7, sc.nr_reclaimed = 0 > [ 61.186509] pass = 0, prio = 6, sc.nr_reclaimed = 0 > [ 61.186525] pass = 0, prio = 5, sc.nr_reclaimed = 0 > [ 61.186534] pass = 0, prio = 4, sc.nr_reclaimed = 0 > [ 61.186544] pass = 0, prio = 3, sc.nr_reclaimed = 0 > [ 61.333383] pass = 0, prio = 2, sc.nr_reclaimed = 7746 > [ 61.436711] pass = 0, prio = 1, sc.nr_reclaimed = 1957 > [ 61.556712] pass = 0, prio = 0, sc.nr_reclaimed = 4528 > [ 61.556729] pass = 1, prio = 12, sc.nr_reclaimed = 0 > [ 61.556739] pass = 1, prio = 11, sc.nr_reclaimed = 0 > [ 61.556749] pass = 1, prio = 10, sc.nr_reclaimed = 0 > [ 61.556759] pass = 1, prio = 9, sc.nr_reclaimed = 0 > [ 61.556768] pass = 1, prio = 8, sc.nr_reclaimed = 0 > [ 61.556778] pass = 1, prio = 7, sc.nr_reclaimed = 0 > [ 61.556787] pass = 1, prio = 6, sc.nr_reclaimed = 0 > [ 61.556797] pass = 1, prio = 5, sc.nr_reclaimed = 0 > [ 61.556806] pass = 1, prio = 4, sc.nr_reclaimed = 0 > [ 61.556816] pass = 1, prio = 3, sc.nr_reclaimed = 0 > [ 61.556825] pass = 1, prio = 2, sc.nr_reclaimed = 0 > [ 61.556835] pass = 1, prio = 1, sc.nr_reclaimed = 0 > [ 61.595841] pass = 1, prio = 0, sc.nr_reclaimed = 0 > [ 61.595854] pass = 2, prio = 12, sc.nr_reclaimed = 0 > [ 61.595864] pass = 2, prio = 11, sc.nr_reclaimed = 0 > [ 61.595873] pass = 2, prio = 10, sc.nr_reclaimed = 0 > [ 61.595883] pass = 2, prio = 9, sc.nr_reclaimed = 0 > [ 61.710044] pass = 2, prio = 8, sc.nr_reclaimed = 2895 > [ 61.710062] pass = 2, prio = 7, sc.nr_reclaimed = 0 > [ 61.710072] pass = 2, prio = 6, sc.nr_reclaimed = 0 > [ 61.710081] pass = 2, prio = 5, sc.nr_reclaimed = 0 > [ 61.710091] pass = 2, prio = 4, sc.nr_reclaimed = 0 > [ 61.710100] pass = 2, prio = 3, sc.nr_reclaimed = 0 > [ 61.710110] pass = 2, prio = 2, sc.nr_reclaimed = 0 > [ 61.710119] pass = 2, prio = 1, sc.nr_reclaimed = 0 > [ 61.823378] pass = 2, prio = 0, sc.nr_reclaimed = 1802 > [ 61.823396] pass = 3, prio = 12, sc.nr_reclaimed = 0 > [ 61.823406] pass = 3, prio = 11, sc.nr_reclaimed = 0 > [ 61.823416] pass = 3, prio = 10, sc.nr_reclaimed = 0 > [ 61.823425] pass = 3, prio = 9, sc.nr_reclaimed = 0 > [ 61.823435] pass = 3, prio = 8, sc.nr_reclaimed = 0 > [ 61.823444] pass = 3, prio = 7, sc.nr_reclaimed = 0 > [ 61.823454] pass = 3, prio = 6, sc.nr_reclaimed = 0 > [ 61.823464] pass = 3, prio = 5, sc.nr_reclaimed = 0 > [ 61.823473] pass = 3, prio = 4, sc.nr_reclaimed = 0 > [ 61.823483] pass = 3, prio = 3, sc.nr_reclaimed = 0 > [ 61.823492] pass = 3, prio = 2, sc.nr_reclaimed = 0 > [ 61.823502] pass = 3, prio = 1, sc.nr_reclaimed = 0 > [ 62.586707] pass = 3, prio = 0, sc.nr_reclaimed = 2716 > [ 62.608037] pass = 4, prio = 12, sc.nr_reclaimed = 3070 > [ 62.634644] pass = 4, prio = 11, sc.nr_reclaimed = 5048 > [ 62.638782] pass = 4, prio = 10, sc.nr_reclaimed = 192 > [ 62.740052] pass = 4, prio = 9, sc.nr_reclaimed = 0 > [ 62.843385] pass = 4, prio = 8, sc.nr_reclaimed = 640 > [ 62.946726] pass = 4, prio = 7, sc.nr_reclaimed = 640 > [ 63.046711] pass = 4, prio = 6, sc.nr_reclaimed = 640 > [ 63.146717] pass = 4, prio = 5, sc.nr_reclaimed = 608 > [ 63.246712] pass = 4, prio = 4, sc.nr_reclaimed = 600 > [ 63.346704] pass = 4, prio = 3, sc.nr_reclaimed = 128 > [ 63.446698] pass = 4, prio = 2, sc.nr_reclaimed = 0 > [ 63.546705] pass = 4, prio = 1, sc.nr_reclaimed = 0 > [ 63.646698] pass = 4, prio = 0, sc.nr_reclaimed = 0 > [ 63.646708] after: sc.nr_reclaimed = 0 > [ 63.646715] shrink_all_memory(10000) failed > > which obviously is done by shrink_all_zones(). Sigh. > > The appended patch should help, please verify. > Yes, that fixes it. Thanks Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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