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SubjectRe: [2.6.20] BUG: workqueue leaked lock
> On Tue, 13 Mar 2007 17:50:14 +0100 Folkert van Heusden <folkert@vanheusden.com> wrote:
> ...
> [ 1756.728209] BUG: workqueue leaked lock or atomic: nfsd4/0x00000000/3577
> [ 1756.728271] last function: laundromat_main+0x0/0x69 [nfsd]
> [ 1756.728392] 2 locks held by nfsd4/3577:
> [ 1756.728435] #0: (client_mutex){--..}, at: [<c1205b88>] mutex_lock+0x8/0xa
> [ 1756.728679] #1: (&inode->i_mutex){--..}, at: [<c1205b88>] mutex_lock+0x8/0xa
> [ 1756.728923] [<c1003d57>] show_trace_log_lvl+0x1a/0x30
> [ 1756.729015] [<c1003d7f>] show_trace+0x12/0x14
> [ 1756.729103] [<c1003e79>] dump_stack+0x16/0x18
> [ 1756.729187] [<c102c2e8>] run_workqueue+0x167/0x170
> [ 1756.729276] [<c102c437>] worker_thread+0x146/0x165
> [ 1756.729368] [<c102f797>] kthread+0x97/0xc4
> [ 1756.729456] [<c1003bdb>] kernel_thread_helper+0x7/0x10
> [ 1756.729547] =======================
> [ 1792.436492] svc: unknown version (0 for prog 100003, nfsd)
> [ 1846.683648] BUG: workqueue leaked lock or atomic: nfsd4/0x00000000/3577
> [ 1846.683701] last function: laundromat_main+0x0/0x69 [nfsd]
> [ 1846.683832] 2 locks held by nfsd4/3577:
> [ 1846.683885] #0: (client_mutex){--..}, at: [<c1205b88>] mutex_lock+0x8/0xa
> [ 1846.683980] #1: (&inode->i_mutex){--..}, at: [<c1205b88>] mutex_lock+0x8/0xa
> [ 1846.683988] [<c1003d57>] show_trace_log_lvl+0x1a/0x30
> [ 1846.683994] [<c1003d7f>] show_trace+0x12/0x14
> [ 1846.683997] [<c1003e79>] dump_stack+0x16/0x18
> [ 1846.684001] [<c102c2e8>] run_workqueue+0x167/0x170
> [ 1846.684006] [<c102c437>] worker_thread+0x146/0x165
> [ 1846.684012] [<c102f797>] kthread+0x97/0xc4
> [ 1846.684023] [<c1003bdb>] kernel_thread_helper+0x7/0x10

Oleg, that's a fairly incomprehensible message we have in there. Can you
please explain what it means?
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