Messages in this thread | | | Subject | Re: 2.4.18 freezes on heavy IO; SysRq question | From | Joachim Breuer <> | Date | Mon, 18 Mar 2002 16:48:42 +0100 |
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Richard Ems <r.ems.mtg@gmx.net> writes:
> Hi all! > > I'm seeing my system freeze on heavy IO. Only the reset button brings it > back to life again (ALT-SysRq-b also worked once). I'm running SuSE's > 2.4.18-30 on a Pentium III (Coppermine) with 256 MB RAM (yes, I should > try vanilla 2.4.18, I will ...) > No SCSI, all IDE. LVM and ext3. > I don't get any oopses, no entries in /var/log/messages, nothing. I > mounted the ext3 partitions with the debug option but still no messages. > What options can I turn on to search for the problem? Any kernel boot > options? LVM/ext3 options?
Seconded; happened to me with 2.4.18 from kernel.org + LVM 2.0 beta 1.1 + Trond's NFS ('current' for 2.4.18). IO was to a local ext3 fs; no LVM on that machine (modules not loaded).
Lock-up was complete for me; no panic message and no IP either so I couldn't poke around. Alt+Sysrq seemed dead; but it might have been on one of the boxen where Linux does not detect Alt+Sysrq properly.
BTW, what's the status of the Sysrq entry key "decoder"? I've about 4 different types of keyboards here, as far as I could determine only one of them sends Linux-parseable Alt-Sysrq. All do send *something* on Alt-Sysrq, though; but I couldn't get them to work with the procedure described in the SysRq manual. That was around 2.4.12.
So long, Joe
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