I was futzing with linux-2.6.23-rc8-mm1 in a power6 lpar when, for whatever reason, a spinlock locked up. The bizarre thing was that the rest of system locked up as well: an ssh terminal, and also an hvc console.
Breaking into the debugger showed 4 cpus, 1 of which was deadlocked in the spinlock, and the other 3 in .pseries_dedicated_idle_sleep This was, ahhh, unexpected. What's up with that? Can anyone provide any insight? I should mention: -- prior to the complete hard lockp, I did see BUG: soft lockup - CPU#0 stuck for 11s! [ip:4473] go off, and I did manage to sneak in a few commands into the console and the ssh session. Then it locked up hard -- but still not completely -- exactly 360 seconds later, a kernel thread ran for a while, producing some console output, even though the keyboard and console were locked up. --linas _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
