Messages in this thread | | | Date | Wed, 27 Sep 2006 16:44:08 +0200 | From | Martin Devera <> | Subject | Re: stat of /proc fails after CPU hot-unplug with EOVERFLOW in 2.6.18 |
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Andrew Morton wrote: > On Wed, 27 Sep 2006 09:55:47 +0200 > Martin Devera <devik@cdi.cz> wrote: > >> Hello, >> >> I have 2way Opteron machine. I've done this: >> echo 0 > /sys/devices/system/cpu/cpu1/online >> >> and then strace stat /proc: >> >> [snip] >> personality(PER_LINUX) = 4194304 >> getpid() = 14926 >> brk(0) = 0x804b000 >> brk(0x804b1a0) = 0x804b1a0 >> brk(0x804c000) = 0x804c000 >> stat("/proc", 0xbf8e7490) = -1 EOVERFLOW >> >> When I do echo 1 > ... to start cpu again then the stat starts >> to work again ... Weird. >> > > boggle. > > Can you add this patch, see where it's going bad?
Ehh .. I finally learned how to code jprobe (I can't reboot the machine now), tested, installed and ... guess what ? The overflow bug is gone :-( It simply works now. I will reboot it next week and try again.
thanks for a help and sorry for your wasted time, Martin - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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