Date: Mon, 17 Sep 2007 19:45:51 +0400 (MSD) From: Dmitry Morozovsky <marck@rinet.ru> To: current@FreeBSD.org Cc: delphij@FreeBSD.org Subject: tmpfs on contemporary -current: panic: locked against myself Message-ID: <20070917194009.W84177@woozle.rinet.ru>
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Dear colleagues,
on contemporary HEAD/i386, ports tinderbox on tmpfs I got
panic: lockmgr: locking against myself
cpuid = 0
KDB: enter: panic
[thread pid 17317 tid 100062 ]
Stopped at kdb_enter+0x32: leave
db> ps 17317
pid ppid pgrp uid state wmesg wchan cmd
17317 17275 990 0 R+ CPU 0 sh
17316 17275 990 0 SE+ tmpfs 0xcca5e388 grep
17275 17219 990 0 S+ wait 0xcd77a558 sh
17220 17218 990 0 S+ nanslp 0xc0705ea4 pnohang
17219 17218 990 0 S+ wait 0xcd0f6000 make
17218 5809 990 0 S+ wait 0xcd77e2ac pnohang
5809 5077 990 0 S+ wait 0xc9eb6000 sh
5077 5076 990 0 S+ wait 0xcd77e804 sh
5076 13601 990 0 S+ wait 0xcd16d804 sh
62811 60266 62811 268 Ss piperd 0xc95aa630 sendmail
60268 60267 60267 268 S select 0xc070bf78 cvsup
60267 60266 60267 268 Ss wait 0xc6c95ab0 sh
60266 720 720 0 S piperd 0xce1f718c cron
41708 41406 41708 268 S+ pause 0xc6c9630c screen
41406 41405 41406 268 Ss+ pause 0xc6c105b8 tcsh
41405 41389 41389 268 S select 0xc070bf78 sshd
41389 702 41389 0 Ss sbwait 0xcb9b7560 sshd
47447 911 47447 268 S+ select 0xc070bf78 boinc_curses
86227 86226 54003 1001 S+ nanslp 0xc0705ea4 wcg_hpf2_rosetta_5.
86226 86225 54003 1001 S+ select 0xc070bf78 wcg_hpf2_rosetta_5.
86225 54003 54003 1001 R+ CPU 1 wcg_hpf2_rosetta_5.
86224 86223 54003 1001 S+ nanslp 0xc0705ea4 wcg_hpf2_rosetta_5.
86223 86222 54003 1001 S+ select 0xc070bf78 wcg_hpf2_rosetta_5.
86222 54003 54003 1001 R+ wcg_hpf2_rosetta_5.
54003 7364 54003 1001 S+ select 0xc070bf78 boinc
7364 92713 7364 1001 S+ pause 0xcc3b730c tcsh
92713 790 92713 268 Ss+ pause 0xc6c0c30c tcsh
71602 1 71602 0 Ss+ ttyin 0xc69e3c10 getty
10819 7980 10819 0 S+ ttyin 0xc69ca410 tcsh
7980 790 7980 268 Ss+ pause 0xcaa8eb10 tcsh
75146 75140 75146 268 Ss+ ttyin 0xc68af410 tcsh
75140 75096 75096 268 S select 0xc070bf78 sshd
75096 702 75096 0 Ss sbwait 0xcaaccea8 sshd
72145 860 72145 0 S+ kqread 0xc94cfa80 tail
13601 990 990 0 S+ select 0xc070bf78 make
12321 932 12321 268 S+ select 0xc070bf78 top
990 860 990 0 S+ wait 0xc6e7a2ac sh
976 962 976 0 S+ ttyin 0xc6999810 tcsh
962 790 962 268 Ss+ pause 0xc6c11b10 tcsh
db> bt 17317
Tracing pid 17317 tid 100062 td 0xc6c12600
kdb_enter(c06a421c,0,c06a2861,e95739cc,0,...) at kdb_enter+0x32
panic(c06a2861,e95739dc,c05845e7,e9573ac0,cca5e330,...) at panic+0x124
_lockmgr(cca5e388,3002,cca5e3b8,c6c12600,c06aa49a,...) at _lockmgr+0x401
vop_stdlock(e9573a5c,c6c12600,3002,cca5e330,e9573a80,...) at vop_stdlock+0x40
VOP_LOCK1_APV(c70ccb20,e9573a5c,e9573bc0,0,c72e1770,...) at VOP_LOCK1_APV+0x46
_vn_lock(cca5e330,3002,c6c12600,c06aa49a,7f3,...) at _vn_lock+0x166
vget(cca5e330,1000,c6c12600,0,c6c12600,...) at vget+0x114
vm_object_reference(ca97d780,e9573b30,c067238d,c1071000,e3ce6000,...) at
vm_object_reference+0x12a
kern_execve(c6c12600,e9573c5c,0,8068ce0,8068dd8,e3ce6000,e3ce6000,e3ce6024,e3ce6549,e3d26000,3fab7,4,39)
at kern_execve+0x312
execve(c6c12600,e9573cfc,c,c6c12600,e9573d2c,...) at execve+0x4c
syscall(e9573d38) at syscall+0x345
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (59, FreeBSD ELF32, execve), eip = 0x8813d4df, esp = 0xbfbfda8c,
ebp = 0xbfbfdab8 ---
db> show lockedvnods
Locked vnodes
0xcca5e330: tag tmpfs, type VREG
usecount 1, writecount 0, refcount 4 mountedhere 0
flags (VI_OWEINACT)
v_object 0xca97d780 ref 1 pages 18
lock type tmpfs: EXCL (count 1) by thread 0xc6c12600 (pid 17317) with 1
pending
tag VT_TMPFS, tmpfs_node 0xcb0d2094, flags 0x0, links 9
mode 0555, owner 0, group 0, size 73800, status 0x0
db>
I saved panic core, so I hope I can answer additional questions...
Sincerely,
D.Marck [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer: marck@FreeBSD.org ]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
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