Date: Fri, 27 Jan 2012 15:30:11 GMT From: "Pavel Polyakov" <bsd@kobyla.org> To: freebsd-net@FreeBSD.org Subject: Re: kern/159621: [tcp] [panic] panic: soabort: so_count Message-ID: <201201271530.q0RFUBJa038232@freefall.freebsd.org>
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The following reply was made to PR kern/159621; it has been noted by GNATS.
From: "Pavel Polyakov" <bsd@kobyla.org>
To: bug-followup@freebsd.org, bsd@kobyla.org
Cc:
Subject: Re: kern/159621: [tcp] [panic] panic: soabort: so_count
Date: Fri, 27 Jan 2012 16:44:28 +0200
Dump header from device /dev/ada1p20
Architecture: amd64
Architecture Version: 1
Dump Length: 223744B (0 MB)
Blocksize: 512
Dumptime: Tue Jan 24 05:32:13 2012
Hostname: shared
Magic: FreeBSD Text Dump
Version String: FreeBSD 8.2-STABLE #5 r230331: Mon Jan 23 22:05:26 UTC
2012
Panic String: soabort: so_count
Dump Parity: 1380996126
Bounds: 1
Dump Status: good
ichwd0: timer reloaded
panic: soabort: so_count
cpuid = 9
KDB: enter: panic
0xffffff0008b293b0: tag syncer, type VNON
usecount 1, writecount 0, refcount 2 mountedhere 0
flags ()
lock type syncer: EXCL by thread 0xffffff0008657000 (pid 20)
0xffffff00bb6a8000: tag ufs, type VDIR
usecount 1, writecount 0, refcount 758 mountedhere 0
flags ()
v_object 0xffffff00af22d948 ref 0 pages 6032
lock type ufs: EXCL by thread 0xffffff01c252a8c0 (pid 73631)
with exclusive waiters pending
ino 70625292, on dev mirror/shared0home
0xffffff00b47c0ce8: tag ufs, type VREG
usecount 4, writecount 4, refcount 1128 mountedhere 0
flags ()
v_object 0xffffff0014183360 ref 0 pages 8984
lock type ufs: SHARED (count 4)
ino 6584279, on dev mirror/shared0home
0xffffff00bc8b8938: tag ufs, type VREG
usecount 4, writecount 0, refcount 5 mountedhere 0
flags ()
v_object 0xffffff017f4e9438 ref 2 pages 9
lock type ufs: SHARED (count 1)
ino 103787584, on dev mirror/shared0home
db:0:kdb.enter.panic> run lockinfo
db:1:lockinfo> show locks
exclusive rw tcpinp (tcpinp) r = 0 (0xffffff01c2425670) locked @
/usr/src/sys/netinet/tcp_input.c:946
exclusive rw tcp (tcp) r = 0 (0xffffffff80b35108) locked @
/usr/src/sys/netinet/tcp_usrreq.c:1507
db:1:locks> show alllocks
Process 75843 (php) thread 0xffffff01c2b9a8c0 (100468)
exclusive lockmgr bufwait (bufwait) r = 0 (0xffffff81ede351c8) locked @
/usr/src/sys/vm/vm_pager.c:311
shared lockmgr ufs (ufs) r = 0 (0xffffff00bc8b89d0) locked @
/usr/src/sys/kern/vfs_subr.c:2170
Process 75837 (php) thread 0xffffff00b723e000 (100232)
exclusive sleep mutex pmap (pmap) r = 0 (0xffffff0008f98d70) locked @
/usr/src/sys/amd64/amd64/pmap.c:4363
exclusive sleep mutex vm page queue mutex (vm page queue mutex) r = 0
(0xffffffff80b41880) locked @ /usr/src/sys/vm/vm_object.c:1101
exclusive sleep mutex vm object (standard object) r = 0
(0xffffff00b41de0d8) locked @ /usr/src/sys/vm/vm_object.c:1048
shared sx user map (user map) r = 0 (0xffffff0008f98cb8) locked @
/usr/src/sys/vm/vm_map.c:2023
Process 75836 (php) thread 0xffffff01c2e228c0 (100490)
exclusive sleep mutex vm object (standard object) r = 0
(0xffffff00bb23dbd0) locked @ /usr/src/sys/vm/vm_object.c:1048
shared sx user map (user map) r = 0 (0xffffff0008a44078) locked @
/usr/src/sys/vm/vm_map.c:2023
Process 75148 (php) thread 0xffffff010568c8c0 (100744)
shared lockmgr ufs (ufs) r = 0 (0xffffff00b47c0d80) locked @
/usr/src/sys/kern/vfs_vnops.c:549
Process 74926 (exim-4.77-0) thread 0xffffff00b71ea000 (100323)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xffffff01fc50c8f0) locked @
/usr/src/sys/kern/uipc_sockbuf.c:148
Process 74366 (exim-4.77-0) thread 0xffffff00b713c000 (100677)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xffffff0060a908f0) locked @
/usr/src/sys/kern/uipc_sockbuf.c:148
Process 74205 (php) thread 0xffffff01c2c2f8c0 (100694)
shared lockmgr ufs (ufs) r = 0 (0xffffff00b47c0d80) locked @
/usr/src/sys/kern/vfs_vnops.c:549
Process 74118 (exim-4.77-0) thread 0xffffff00b7d748c0 (100685)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xffffff01fc990e40) locked @
/usr/src/sys/kern/uipc_sockbuf.c:148
Process 74105 (php) thread 0xffffff01c262d460 (100442)
exclusive lockmgr bufwait (bufwait) r = 0 (0xffffff81ee2c5e90) locked @
/usr/src/sys/kern/vfs_bio.c:1891
shared lockmgr ufs (ufs) r = 0 (0xffffff00b47c0d80) locked @
/usr/src/sys/kern/vfs_vnops.c:549
Process 73987 (exim-4.77-0) thread 0xffffff00b715a460 (100223)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xffffff00600c68f0) locked @
/usr/src/sys/kern/uipc_sockbuf.c:148
Process 73728 (php) thread 0xffffff0008f14000 (100195)
shared lockmgr ufs (ufs) r = 0 (0xffffff00b47c0d80) locked @
/usr/src/sys/kern/vfs_vnops.c:549
Process 73631 (exim-4.77-0) thread 0xffffff01c252a8c0 (100353)
exclusive lockmgr bufwait (bufwait) r = 0 (0xffffff81ee2d62b8) locked @
/usr/src/sys/kern/vfs_bio.c:1891
exclusive sx dirhash (dirhash) r = 0 (0xffffff0092e50000) locked @
/usr/src/sys/ufs/ufs/ufs_dirhash.c:216
exclusive lockmgr ufs (ufs) r = 0 (0xffffff00bb6a8098) locked @
/usr/src/sys/kern/vfs_subr.c:2170
Process 73552 (exim-4.77-0) thread 0xffffff0008bda000 (100206)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xffffff005c0b80f8) locked @
/usr/src/sys/kern/uipc_sockbuf.c:148
Process 73547 (exim-4.77-0) thread 0xffffff01c252e000 (100349)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xffffff01c27d6648) locked @
/usr/src/sys/kern/uipc_sockbuf.c:148
Process 2234 (zabbix_agentd) thread 0xffffff0008c018c0 (100272)
exclusive sleep mutex sigio lock (sigio lock) r = 0 (0xffffffff8096bb60)
locked @ /usr/src/sys/kern/kern_descrip.c:1095
Process 20 (syncer) thread 0xffffff0008657000 (100115)
exclusive lockmgr syncer (syncer) r = 0 (0xffffff0008b29448) locked @
/usr/src/sys/kern/vfs_subr.c:1770
Process 12 (intr) thread 0xffffff0002b068c0 (100077)
exclusive sleep mutex em0:tx(0) (em0:tx(0)) r = 0 (0xffffff0002561808)
locked @ /usr/src/sys/modules/em/../../dev/e1000/if_em.c:1523
Process 12 (intr) thread 0xffffff0002b07460 (100075)
exclusive rw tcpinp (tcpinp) r = 0 (0xffffff01c2425670) locked @
/usr/src/sys/netinet/tcp_input.c:946
exclusive rw tcp (tcp) r = 0 (0xffffffff80b35108) locked @
/usr/src/sys/netinet/tcp_usrreq.c:1507
db:1:alllocks> show lockedvnods
Locked vnodes
db:0:kdb.enter.panic> show pcpu
cpuid = 9
dynamic pcpu = 0xffffff807f70d780
curthread = 0xffffff0002b07460: pid 12 "irq256: em0:rx 0"
curpcb = 0xffffff8241018d10
fpcurthread = none
idlethread = 0xffffff0002369460: tid 100009 "idle: cpu9"
curpmap = 0xffffffff8096b670
tssp = 0xffffffff80b7aaa8
commontssp = 0xffffffff80b7aaa8
rsp0 = 0xffffff8241018d10
gs32p = 0xffffffff80b798e0
ldt = 0xffffffff80b79920
tss = 0xffffffff80b79910
spin locks held:
db:0:kdb.enter.panic> bt
Tracing pid 12 tid 100075 td 0xffffff0002b07460
kdb_enter() at kdb_enter+0x3b
panic() at panic+0x17b
soabort() at soabort+0x9c
syncache_expand() at syncache_expand+0x2ca
tcp_input() at tcp_input+0xf05
ip_input() at ip_input+0xb3
netisr_dispatch_src() at netisr_dispatch_src+0x9e
ether_demux() at ether_demux+0x176
ether_input() at ether_input+0x198
em_rxeof() at em_rxeof+0x19d
em_msix_rx() at em_msix_rx+0x24
intr_event_execute_handlers() at intr_event_execute_handlers+0x67
ithread_loop() at ithread_loop+0xad
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffff8241018d00, rbp = 0 ---
6 0 0 0 SL crypto_r 0xffffffff80e03ce0 [crypto
returns]
5 0 0 0 SL crypto_w 0xffffffff80e03ca0 [crypto]
13 0 0 0 SL - 0xffffffff8096e5c4 [yarrow]
4 0 0 0 SL - 0xffffffff8096ab68 [g_down]
3 0 0 0 SL - 0xffffffff8096ab60 [g_up]
2 0 0 0 SL - 0xffffffff8096ab50 [g_event]
12 0 0 0 RL (threaded) intr
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