FreeBSD 8.2-PRERELEASE hangs under load with "live" kernel
kostikbel at gmail.com
Thu Jan 6 12:26:38 UTC 2011
On Thu, Jan 06, 2011 at 01:31:45PM +0300, Lev Serebryakov wrote:
> Hello, Freebsd-stable.
> I've added torrent client (transmission) to software on my home
> server and it starts to hang in very unusual way: kernel works but
> userland doesn't.
> I can ping it (and it answers). I can scroll console with
> "scrolllock" button and keys. I can break into debugger with
> Ctrl+SysReq and it shows, that one CPU is occupied by idle process and
> other by "Giant tasq", but no userland processes answer: I can not
> ssh to it, I cannot login on console, samba is dead, etc.
> "ps" in kernel debugger shows, that many of processes in "pfault"
> state, and noting more "special".
> memtest86+ doesn't show any errors after 8 passes of tests (about
> 10 hours), so RAM looks Ok.
> What should I do in kdb to understand what happens?
> Kernel config and /var/run/dmesg.boot is attached.
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