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Date:      Fri, 8 Apr 2005 17:25:06 -0400
From:      John Baldwin <jhb@FreeBSD.org>
To:        current@FreeBSD.org
Subject:   Panic in sbflush_locked
Message-ID:  <200504081725.06751.jhb@FreeBSD.org>

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Got this while doing a buildworld -j 8 loop overnight on a PII Xeon x 4 box:

login: panic: sbflush_locked: cc 11 || mb 0xc22dad00 || mbcnt 0
cpuid = 3
KDB: enter: panic
[thread pid 1673 tid 100117 ]
Stopped at      kdb_enter+0x30: leave
db> tr
Tracing pid 1673 tid 100117 td 0xc216c170
kdb_enter(c0702cab,3,c070658d,e010f9b8,100) at kdb_enter+0x30
panic(c070658d,b,c22dad00,0) at panic+0x144
sbflush_locked(e010fa24,1ea,e010f9ec,c05330d6,c0761c40) at sbflush_locked+0x91
sbrelease_locked(e010fa24,c4d957c8,c070650f,240,c4d95858) at sbrelease_locked+0x12
sbrelease(e010fa24,c4d957c8,0,0,c0738f00) at sbrelease+0x41
sorflush(c4d957c8,0,c07064db,193,c279cb20) at sorflush+0x15f
sofree(c4d957c8,0,c07064db,1df,c070650f) at sofree+0x250
soclose(c4d957c8,151,c279cb20,e010fb10,c04f6d38) at soclose+0x2e2
fifo_cleanup(c527c6a8,c527c6a8,e010fb54,c216c170,e010fb30) at fifo_cleanup+0x2a
fifo_close(e010fb54,0,c07117d6,7b6) at fifo_close+0x68
ufsfifo_close(e010fb54,e010fb80,c05a6286,c07444c0,e010fb54) at ufsfifo_close+0x7f
VOP_CLOSE_APV(c07444c0,e010fb54,c216c170,c209ac00,c0751ec0) at VOP_CLOSE_APV+0x3e
vn_close(c527c6a8,7,c2387380,c216c170,c0711ea9) at vn_close+0x76
vn_closefile(c28a83a8,c216c170,e010fc14,c051b964,c28a83a8) at vn_closefile+0xf4
fifo_close_f(c28a83a8,c216c170,c0700890,846,c28a83a8) at fifo_close_f+0x19
fdrop_locked(c28a83a8,c216c170,c0700890,831) at fdrop_locked+0x94
fdrop(c28a83a8,c216c170,e010fc70,c0523ba2,c075a940,c0700c04,2dc,c216c170,e010fd14,0,c216f9ec,e010fd14,c216c170,c216f9ec,e010fce4,e010fc90,c0515223,7,c3146ec8,0,3,c3146e00,e010fcb0,c051533d,c3146e00,0,3) at fdrop+0x3c
closef(c28a83a8,c216c170,c0700890,3ea,c216c170) at closef+0x3f2
close(c216c170,e010fd14,4,e010fd3c,1) at close+0x1f2
syscall(80b002f,2f,bfbf002f,bfbfd990,0) at syscall+0x2a0
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (6, FreeBSD ELF32, close), eip = 0x805ccf3, esp = 0xbfbfd96c, ebp = 0xbfbfd978 ---
db> x/x 0xe010fa24,20
0xe010fa24:     0               0               0               0
0xe010fa34:     0               0               c07336a8        c07064d4
0xe010fa44:     c07064d4        30000           0               0
0xe010fa54:     0               c216c170        0               0
0xe010fa64:     c22dad00        c22dad00        c22dad00        b
0xe010fa74:     2000            0               10000           0
0xe010fa84:     1               0               40              0
0xe010fa94:     c4d957c8        c4d957c8        0               e010fabc

Box is still sitting in ddb if more info is desired.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org



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