Date: Mon, 24 May 1999 17:06:35 -0400 From: "David E. Cross" <crossd@cs.rpi.edu> To: freebsd-hackers@freebsd.org Subject: repeatable 3.2 panic, new and improved with backtrace Message-ID: <199905242106.RAA74352@cs.rpi.edu>
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Here it is:
(I am not sure that the source didn't get updated since the kernel was
compiled, so the line numbers may be meaningless. The second backtrace is
from and earlier kernel and has 0 line number information in it.
IdlePTD 2985984
initial pcb at 264eac
panicstr: lockmgr: locking against myself
panic messages:
---
panic: lockmgr: locking against myself
syncing disks... 77 65 47 26 7 done
dumping to dev 20001, offset 303392
dump 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
---
#0 boot (howto=256) at ../../kern/kern_shutdown.c:285
285 dumppcb.pcb_cr3 = rcr3();
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:285
#1 0xc014b3f4 in at_shutdown (
function=0xc0234aca <__set_sysuninit_set_sym_M_KTRACE_uninit_sys_uninit+154>, arg=0x10002, queue=-949495424) at ../../kern/kern_shutdown.c:446
#2 0xc01470f8 in lockmgr (lkp=0xc14ab000, flags=16842754,
interlkp=0xc767d9f0, p=0xc743eb20) at ../../kern/kern_lock.c:326
#3 0xc016cfbc in vop_stdlock (ap=0xc7482a64) at ../../kern/vfs_default.c:209
#4 0xc01e4fad in ufs_vnoperate (ap=0xc7482a64)
at ../../ufs/ufs/ufs_vnops.c:2299
#5 0xc0175d97 in vn_lock (vp=0xc767d980, flags=65538, p=0xc743eb20)
at vnode_if.h:811
#6 0xc016f93f in vget (vp=0xc767d980, flags=2, p=0xc743eb20)
at ../../kern/vfs_subr.c:1274
#7 0xc016bac7 in vfs_cache_lookup (ap=0xc7482b24)
at ../../kern/vfs_cache.c:439
#8 0xc01e4fad in ufs_vnoperate (ap=0xc7482b24)
at ../../ufs/ufs/ufs_vnops.c:2299
#9 0xc016e079 in lookup (ndp=0xc7482d94) at vnode_if.h:31
#10 0xc01b769c in nfs_namei (ndp=0xc7482d94, fhp=0xc7482d0c, len=0,
slp=0xc0f7e600, nam=0xc1688fc0, mdp=0xc7482c48, dposp=0xc7482c44,
retdirp=0xc7482c2c, p=0xc743eb20, kerbflag=0, pubflag=0)
at ../../nfs/nfs_subs.c:1642
#11 0xc01a068f in nfsrv_lookup (nfsd=0xc1542b00, slp=0xc0f7e600,
procp=0xc743eb20, mrq=0xc7482e34) at ../../nfs/nfs_serv.c:396
#12 0xc01b90f6 in nfssvc_nfsd (nsd=0xc7482e94, argp=0x8071af4 "", p=0xc743eb20)
at ../../nfs/nfs_syscalls.c:656
#13 0xc01b8a11 in nfssvc (p=0xc743eb20, uap=0xc7482f94)
at ../../nfs/nfs_syscalls.c:342
#14 0xc020bd5f in syscall (frame={tf_es = 39, tf_ds = 39, tf_edi = 8,
tf_esi = 0, tf_ebp = -1077944892, tf_isp = -951570460, tf_ebx = 0,
tf_edx = -1077945288, tf_ecx = 0, tf_eax = 155, tf_trapno = 12,
tf_err = 2, tf_eip = 134518940, tf_cs = 31, tf_eflags = 642,
tf_esp = -1077945280, tf_ss = 39}) at ../../i386/i386/trap.c:1100
#15 0xc0202b8c in Xint0x80_syscall ()
#16 0x80480e9 in ?? ()
Here is the dump from a previous build, no line numbers in this one, sorry.
panic: lockmgr: locking against myself
syncing disks... 64 46 31 13 2 done
dumping to dev 20001, offset 303392
dump 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
---
#0 0xc014ae43 in boot ()
(kgdb) bt
#0 0xc014ae43 in boot ()
#1 0xc014b0c8 in at_shutdown ()
#2 0xc0146dbf in lockmgr ()
#3 0xc016ccec in vop_stdlock ()
#4 0xc01e4c8d in ufs_vnoperate ()
#5 0xc0175ac7 in vn_lock ()
#6 0xc016f66f in vget ()
#7 0xc016b7f7 in vfs_cache_lookup ()
#8 0xc01e4c8d in ufs_vnoperate ()
#9 0xc016dda9 in lookup ()
#10 0xc01b73cc in nfs_namei ()
#11 0xc01a03bf in nfsrv_lookup ()
#12 0xc01b8e26 in nfssvc_nfsd ()
#13 0xc01b8741 in nfssvc ()
#14 0xc020ba4f in syscall ()
#15 0xc020287c in Xint0x80_syscall ()
#16 0x80480e9 in ?? ()
(kgdb)
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