Messages in this thread | | | Subject | 2.4.13 infinite loop in all processes | From | "Jeffrey W. Baker" <> | Date | 08 Nov 2001 10:26:38 -0800 |
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The setting: 2-way P-III machine, 2 GB RAM, 1GB swap, ext3 filesystem on aic7xxx storage. Kernel 2.4.13 + ext3. Last night, the load on the machine went to 45. I investigated, and saw that every process was getting equal CPU time, and all CPU time (on both CPUs) was spent in the kernel. No process was making much progress. I could log in to the machine and execute 'ps' or read from /proc, but I could not write or read from the disk. Any attempted disk I/O resulted in dead processes in the D state.
The physical memory was mostly used up, with 100MB free, 600MB cached, and 1300MB used. Swap was completely virgin: not a single byte had been used. The load was very normal: a lot of perl scripts reading and writing over the network to a database. No oddball mlock activity or any other out-of-the-ordinary workload.
I left the machine overnight to see if it would sort itself out, but it did not. I had to power cycle it. I upgraded (?) to 2.4.14 + ext3 0.9.15, and will report if the same happens again.
-jwb
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