2009/7/23 C. C. Tang <hiyo...@gmail.com>: > Attilio Rao wrote: >> >> 2009/7/22 C. C. Tang <hiyo...@gmail.com>: >>>> >>>> Could that one (on i386) be related? >>>> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/134584 >>>> >>> I have no idea about it but I can tell the difference... >>> My machine panic randomly rather than on shutdown and I remembered that >>> it >>> failed to write core dump. It also failed to reboot automatically.. >> >> Is your problem on -CURRENT and amd64? >> At some point there has been a problem with PAT support (and >> tlb_shootdowns() could lead to a livelock hanging forever, leading to >> such a bug) but I expect it is fixed now. >> Can you try with a fresh new -CURRENT if any? > > My problem is on i386 version of 7.2-RELEASE-p2 on Intel Atom 330 CPU. > And my system just panic randomly with "spin lock held too long". > It didn't panic at reboot or shutdown so I think it the problem is somewhat > different from that mentioned by Barbara's PR? > > Anyway I disabled powerd and it seems become stable now. > > And I am sorry that my system has been put into service so it would be hard > for me to switch to -CURRENT... :(
Can you re-enable powerd and try the attached patch?: http://www.freebsd.org/~attilio/sched_ule.diff The patch is against STABLE_7, but I think HEAD has the same bug. Please try it and report to me. Attilio -- Peace can only be achieved by understanding - A. Einstein _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"