Re: [2.6.21-rc7-mm2] BUG while suspend to ram

Andrew Morton
2007-04-30T07:32:36Z

On Sun, 29 Apr 2007 12:42:43 +0200 Maciej Rutecki <maciej.rutecki@gmail.com> wrote:

> BUG: at kernel/kthread.c:166 kthread_bind()
> [<c01465ac>] _cpu_down+0x16c/0x250
> [<c0146890>] disable_nonboot_cpus+0x60/0xf0
> [<c014cd67>] pm_suspend_disk+0x177/0x2c0
> [<c014b645>] enter_state+0xb5/0x200
> [<c014b84d>] state_store+0xbd/0xd0
> [<c014b790>] state_store+0x0/0xd0
> [<c01be189>] subsys_attr_store+0x29/0x40
> [<c01be3a4>] sysfs_write_file+0xd4/0x160
> [<c017b701>] vfs_write+0xc1/0x160
> [<c01be2d0>] sysfs_write_file+0x0/0x160
> [<c017be11>] sys_write+0x41/0x70
> [<c0187355>] sys_dup2+0xd5/0x100
> [<c01040f6>] sysenter_past_esp+0x5f/0x85
> [<c0330000>] xfrm_policy_insert+0x210/0x400
> =======================

yup, thanks - the present plan is to remove the kthread_bind() call from
_cpu_down(). Although we don't appear to fully undersand why we're
removing it, nor why it was added in the first place, which has me worried.