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? -- Peter Jeremy
pgpG6eQRJNanL.pgp
Description: PGP signature
