On Tuesday 26 January 2010 2:33:37 am Peter Jeremy wrote: > I have just upgraded to 8-STABLE/amd64 from about 18 hours ago and am > now getting regular (the following pair of messages about every > minute) compaints as follows: > > kernel: uma_zalloc_arg: zone "mbuf" with the following non-sleepable locks > held: > kernel: exclusive sleep mutex sp_lock (sp_lock) r = 0 (0xffffff000460bb00) > locked @ /usr/src/sys/rpc/svc.c:1098 > kernel: KDB: stack backtrace: > kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a > kernel: _witness_debugger() at _witness_debugger+0x2c > kernel: witness_warn() at witness_warn+0x2c2 > kernel: uma_zalloc_arg() at uma_zalloc_arg+0x29d > kernel: nfs_realign() at nfs_realign+0x5f > kernel: fha_assign() at fha_assign+0x2d8 > kernel: svc_run_internal() at svc_run_internal+0x1ee > kernel: svc_thread_start() at svc_thread_start+0xb > kernel: fork_exit() at fork_exit+0x112 > kernel: fork_trampoline() at fork_trampoline+0xe > kernel: --- trap 0xc, rip = 0x80069e04c, rsp = 0x7fffffffe6d8, rbp = 0x5 --- > kernel: uma_zalloc_arg: zone "mbuf" with the following non-sleepable locks > held: > kernel: exclusive sleep mutex sp_lock (sp_lock) r = 0 (0xffffff000460bb00) > locked @ /usr/src/sys/rpc/svc.c:1098 > kernel: KDB: stack backtrace: > kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a > kernel: _witness_debugger() at _witness_debugger+0x2c > kernel: witness_warn() at witness_warn+0x2c2 > kernel: uma_zalloc_arg() at uma_zalloc_arg+0x29d > kernel: nfs_realign() at nfs_realign+0x5f > kernel: fha_assign() at fha_assign+0x2d8 > kernel: svc_run_internal() at svc_run_internal+0x1ee > kernel: svc_thread_start() at svc_thread_start+0xb > kernel: fork_exit() at fork_exit+0x112 > kernel: fork_trampoline() at fork_trampoline+0xe > kernel: --- trap 0xc, rip = 0x80069e04c, rsp = 0x7fffffffe6d8, rbp = 0x5 --- > > It looks like NFS is missing some lock/unlock pairs. Has anyone else > seen this? And does anyone have a fix?
I suspect this was caused by the recent alignment fixes to NFS. I've cc'd Marius. -- John Baldwin _______________________________________________ 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"
