Date: Wed, 26 Jul 2000 13:25:49 +0200 From: Sheldon Hearn <sheldonh@uunet.co.za> To: Kirk McKusick <mckusick@mckusick.com> Cc: green@FreeBSD.org, current@FreeBSD.org Subject: Re: Panic: lockmgr: pid 5, not exclusive lock holder 0 unlocking Message-ID: <408.964610749@axl.ops.uunet.co.za> In-Reply-To: Your message of "Tue, 25 Jul 2000 11:28:47 MST." <200007251828.LAA62730@freefall.freebsd.org>
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Hi Kirk,
On Tue, 25 Jul 2000 11:28:47 MST, Kirk McKusick wrote:
> Modified files:
> sys/kern vfs_bio.c
> Log:
> Now that buffer locks can be recursive, we need to delete the panics
> that complain about them.
This looks related. I get it pretty consistently on shutdown, provided
the machine did some work subsequent to going multi-user.
Ciao,
Sheldon.
Script started on Wed Jul 26 13:20:40 2000
GNU gdb 4.18
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This GDB was configured as "i386-unknown-freebsd"...
IdlePTD 2842624
initial pcb at 247480
panicstr: lockmgr: pid 1, not exclusive lock holder 0 unlocking
panic messages:
---
---
#0 boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:303
303 dumppcb.pcb_cr3 = rcr3();
(kgdb) back
#0 boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:303
#1 0xc0146bb5 in panic (fmt=0xc02072a0 "lockmgr: pid %d, not %s %d unlocking")
at /usr/src/sys/kern/kern_shutdown.c:553
#2 0xc01418d0 in lockmgr (lkp=0xc0ea3c00, flags=6, interlkp=0xc8f8842c,
p=0xc84bfe00) at /usr/src/sys/kern/kern_lock.c:382
#3 0xc017509f in vop_stdunlock (ap=0xc84c5e48)
at /usr/src/sys/kern/vfs_default.c:255
#4 0xc01b6eed in ufs_vnoperate (ap=0xc84c5e48)
at /usr/src/sys/ufs/ufs/ufs_vnops.c:2275
#5 0xc01b1e4f in ufs_inactive (ap=0xc84c5e78) at vnode_if.h:865
#6 0xc01b6eed in ufs_vnoperate (ap=0xc84c5e78)
at /usr/src/sys/ufs/ufs/ufs_vnops.c:2275
#7 0xc0177e1a in vput (vp=0xc8f883c0) at vnode_if.h:794
#8 0xc01af12b in ffs_sync (mp=0xc0c65200, waitfor=2, cred=0xc0721780,
p=0xc0259de0) at /usr/src/sys/ufs/ffs/ffs_vfsops.c:955
#9 0xc0179d9d in sync (p=0xc0259de0, uap=0x0)
at /usr/src/sys/kern/vfs_syscalls.c:551
#10 0xc01465eb in boot (howto=0) at /usr/src/sys/kern/kern_shutdown.c:225
#11 0xc01463ec in reboot (p=0xc84bfe00, uap=0xc84c5f80)
at /usr/src/sys/kern/kern_shutdown.c:146
#12 0xc01edea9 in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = -1077936612, tf_esi = -1077936624, tf_ebp = -1077936836,
tf_isp = -934518828, tf_ebx = -1077936732, tf_edx = -1, tf_ecx = 4,
tf_eax = 55, tf_trapno = 7, tf_err = 2, tf_eip = 134536452, tf_cs = 31,
tf_eflags = 643, tf_esp = -1077937056, tf_ss = 47})
at /usr/src/sys/i386/i386/trap.c:1128
#13 0xc01e2bb5 in Xint0x80_syscall ()
#14 0x80486ee in ?? ()
#15 0x8048478 in ?? ()
#16 0x8048139 in ?? ()
(kgdb) quit
Script done on Wed Jul 26 13:20:49 2000
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