On Sat, Apr 30, 2011 at 7:01 AM, Arthur Marsh <arthur.ma...@internode.on.net> wrote: > Arthur Marsh wrote, on 30/04/11 07:06: >> >> Hi, I'd previously (2011-03-28) run into an issue with commit >> f99a99330f85a84c346ddeb4adc72dbfad9b9e3e >> kernel/watchdog.c: always return NOTIFY_OK during cpu up/down events >> >> but wasn't sure that this commit was the cause of a problem or simply >> revealing symptoms. I have since re-run a git-bisect and the same commit >> was implicated. >> >> On on old Pentium-II-266 machine with 440BX chipset I would get numerous >> "BUG: soft lockup - CPU#0 stuck for 63s!" type errors in dmesg with >> different applications being reported and even a command like: >> >> dmesg|tail -100 >> >> executed in a konsole window would cause the machine to be unresponsive >> for a few minutes. System shutdown would also fail, requiring "init 0" >> to be entered a second time. >> >> This behaviour happened both with and without "lapic" on the kernel >> command line, and with a kernel from Debian Experimental as documented >> at: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624129 >> >> As this bisection took a couple of days I haven't tested the last few >> snapshots at kernel.org but will do so later today. >> >> I'm happy to test any new versions of patches to work around this issue. >> >> Arthur. > > Even with kernel 2.6.39-rc5-git2 I'm seeing: > > $ dmesg|grep -i cpu > > [ 323.983198] BUG: soft lockup - CPU#0 stuck for 63s! [egrep:3599] > [ 323.983198] EIP: 0073:[<08051305>] EFLAGS: 00000212 CPU: 0 > [ 467.206148] BUG: soft lockup - CPU#0 stuck for 61s! [kded:2679] > [ 467.206148] EIP: 0073:[<41fdbb1c>] EFLAGS: 00000246 CPU: 0 > [ 651.351146] BUG: soft lockup - CPU#0 stuck for 63s! [Xorg:1566] > [ 651.351146] EIP: 0073:[<081a1ae5>] EFLAGS: 00003246 CPU: 0 > [ 777.521288] BUG: soft lockup - CPU#0 stuck for 61s! [icedove-bin:3534] > [ 777.521288] EIP: 0073:[<b75fee57>] EFLAGS: 00200283 CPU: 0 > [ 893.462901] BUG: soft lockup - CPU#0 stuck for 64s! [aptitude:3856] > [ 893.462901] EIP: 0073:[<4107b35d>] EFLAGS: 00200202 CPU: 0 > > but at least with 2.6.39-rc5-git2, I'm not seeing a lock-up happening when > entering a command like: > > dmesg|tail -100 > > in a konsole window. >
Can you show us the full backtrace of the soft lockup's? Thanks. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
