Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: 2.4.23 is freezing my systems hard after 24-48 hours | From | Philippe Troin <> | Date | 12 Dec 2003 13:26:12 -0800 |
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"Jeremy Kusnetz" <JKusnetz@nrtc.org> writes:
> I've read that enabling ip-chains compatibility would cause this, > but I do not have this feature enabled at all. > > I have a cluster of 8 servers all doing the same thing that I > upgraded to a stock 2.4.23 kernel, after that period of time one > random one will lock up hard. No output to screen, can't sysrq or > anything, only physically hitting the power button can get me out of > it. I've gotten nothing in any of my logs to give any indication on > what's going on. > > They don't seem to come when the server is under load, but more on > how long the server has been up. Actually I do have this kernel > running in my development environment, but none of those machines > have ever locked up, it seems they need some load to eventually > cause this to happen. > > I had been running 2.4.20 with no problems before the upgrade. > > I haven't tried running a bk series kernel yet, in the mean time > I've downgraded to 2.4.22 with the do_brk patch. I haven't had this > kernel up long enough to see if it will crash.
You're not alone... I have the same problems: 2.4.22 works, 2.4.23 locks up apparently randomly. I cannot get a backtrace with sysrq either.
Have you tried running with the NMI watchdog? I cannot run it myself because I have to disable APIC support since my motherboard is buggy. To do so, try booting with "nmi_watchdog=1" or "nmi_watchdog=2" depending on your configuration. Check Documentation/nmi_watchdog.txt for details. Also verify that the NMI oopser works by checking for a non-zero NMI count in /proc/interrupts.
If only I could get a backtrace... :-)
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