Date: Mon, 15 Jun 2009 22:02:16 +0100 From: Kris Kennaway <kris@FreeBSD.org> To: pav@FreeBSD.org Cc: dfr@FreeBSD.org, kmacy@FreeBSD.org, current@FreeBSD.org Subject: Re: pointyhat panic Message-ID: <4A36B6D8.8000701@FreeBSD.org> In-Reply-To: <1242075474.72992.118.camel@hood.oook.cz> References: <1242075474.72992.118.camel@hood.oook.cz>
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Pav Lucistnik wrote: > panic: mtx_lock() of destroyed mutex @ /usr/src/sys/rpc/clnt_vc.c:953 > cpuid = 2 > KDB: enter: panic > [thread pid 0 tid 100029 ] > Stopped at kdb_enter+0x3d: movq $0,0x3f5fb8(%rip) > db> bt > Tracing pid 0 tid 100029 td 0xffffff00018e1000 > kdb_enter() at kdb_enter+0x3d > panic() at panic+0x17b > _mtx_lock_flags() at _mtx_lock_flags+0xc5 > clnt_vc_soupcall() at clnt_vc_soupcall+0x273 > sowakeup() at sowakeup+0xf8 > tcp_do_segment() at tcp_do_segment+0x23c9 > tcp_input() at tcp_input+0x9ec > ip_input() at ip_input+0xbc > ether_demux() at ether_demux+0x1ed > ether_input() at ether_input+0x171 > em_rxeof() at em_rxeof+0x201 > em_handle_rxtx() at em_handle_rxtx+0x4b > taskqueue_run() at taskqueue_run+0x96 > taskqueue_thread_loop() at taskqueue_thread_loop+0x3f > fork_exit() at fork_exit+0x12a > fork_trampoline() at fork_trampoline+0xe > --- trap 0, rip = 0, rsp = 0xffffffff240a6d40, rbp = 0 --- > > The box is in kdb on serial console for now. May 9 -CURRENT, I think. > This happened again. The trigger was this (^C of a find on a busy netapp volume with a lot of other concurrent nfs traffic to the same mountpoint): pointyhat# find . -name \*.bz2 -mmin -10 ^Cnfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding nfs server dumpster:/vol/vol4/pointyhat: not responding load: 4.54 cmd: find 93357 [rpccon] 11.19u 111.62s 0% 4848k About 5-10 minutes later the machine panicked. I'll try updating to a newer -CURRENT. Kris
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