On Sunday, 23 September 2007 18:19, Christian P. Schmidt wrote: > Rafael J. Wysocki wrote: > > On Sunday, 23 September 2007 14:38, Christian P. Schmidt wrote: > >> Rafael J. Wysocki wrote: > >>> On Saturday, 22 September 2007 17:41, Christian P. Schmidt wrote: > >>>> Hi all, > >>>> > >>>> I'm having a strange problem, of course not reproducible. Sometimes > >>>> after a suspend (to ram) and resume cycle, the kernel will try to free > >>>> all memory. This means, all running applications are flushed to swap (as > >>>> long as it is available), caches and buffers stay at around 15MB each. > >>>> > >>>> The following video (traded quality for bandwidth) shows what happens on > >>>> the way from no swap to "swapon -a" (that's the unreadable thing in the > >>>> small shell): http://digadd.de/swapping.avi > >>>> > >>>> The system: > >>>> Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64 > >>>> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux > >>> Are you using an ATI binary graphics driver? > >> Yes. I do not (yet) have a choice... can't wait for the open source > >> drivers. > > > > That, most probably, is the source of the problem. Please see: > > http://bugzilla.kernel.org/show_bug.cgi?id=8943 > > I do however not agree with Andrew's conclusion, as the memory is not > "used", so I wouldn't expect a memory leak. As soon as I turn swapping > off everything is loaded again, and works. If there was a leak it should > use the memory, shouldn't it? > If the problem would be 100% reproducible I could try without, but as > is, I have up to two weeks with 2-3 cycles daily (sometimes more, as I > receive untraceable SERR from my PCI-E WLAN after which I do not receive > interrupts any more - only a suspend/resume cycle helps...) before the > problem occurs. > > Anyway, is there a way of unloading the module temporarily without > shutting X down?
I don't know. Can you try another version of the ATI driver? The reporter of this bugzilla entry did that and it apparently helped him: http://bugzilla.kernel.org/show_bug.cgi?id=8943#c4 > >>>> A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg > >>>> shows nothing, logs show nothing. Any ideas for debugging are welcome. > >>> Well, that's interesting. > >>> > >>> Can you try in the minimal configuration (ie. boot with init=/bin/bash, > >>> mount /sys, mount /proc and run "echo mem > /sys/power/disk)? > >> Which? the 32bit or the 64bit? > > > > 32-bit, but please do that without the ATI driver. > > Did it. As before, suspends, but when I resume, I hear the CD-ROM spin > up, the backlight comes on, and nothing more. The system is a Lenovo > Thinkpad T60 8744-4XG, BIOS 1.09. Are you 100% sure that your 32-bit kernel configuration reflects the 64-bit one? In particular, do you have CONFIG_NO_HZ set in the 32-bit .config? Also, would you be able to repeat this test with the latest -git kernel (currently 2.6.23-rc7-git4)? Greetings, Rafael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
