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    SubjectRe: 2.6.31 regression: programs crashing after a couple of days of uptime with hibernation
    Date
    On Friday 02 April 2010, Ondrej Zary wrote:
    > On Friday 02 April 2010 00:33:55 Rafael J. Wysocki wrote:
    > > On Friday 02 April 2010, Ondrej Zary wrote:
    > > > On Thursday 01 April 2010 23:45:33 you wrote:
    > > > > On Thursday 01 April 2010, Ondrej Zary wrote:
    > > > > > Hello,
    > > > > > with kernel 2.6.30, I can have uptime of more than a month on my
    > > > > > desktop PC (with hibernation). It's impossible with 2.6.31. After 1
    > > > > > to 3 days, processes that were running during hibernation (e.g.
    > > > > > konsole, kwin, kicker, xorg) start to crash randomly in very weird
    > > > > > ways. The kernel itself does not seem to crash. When I run the
    > > > > > crashed program again, it seems to work. Looks like some memory
    > > > > > corruption.
    > > > > >
    > > > > > This bug is also present in 2.6.32 and 2.6.33.
    > > > >
    > > > > Is the kernel 32-bit or 64-bit? What kind of CPU is there in the box?
    > > >
    > > > It's old 32-bit i686 CPU - Cyrix MII.
    > >
    > > Please try with this patch applied:
    > > http://git.kernel.org/?p=linux/kernel/git/mingo/linux-2.6-x86.git;a=patch;h
    > >=8ae06d223f8203c72104e5c0c4ee49a000aedb42
    >
    > Thanks, I'll try it. But I doubt that it will fix the problem. There were no
    > changes in hibernate_asm_32.S between 2.6.30 and 2.6.31.

    The change that exposed this issue was elsewhere in the x86 arch code. I don't
    know where exactly, but we surely didn't need the above patch before.

    Rafael


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