stable/9 r225827 i386 panic: vm_page_unwire: page 0xc2a38dc8's wire count is zero

[Kostik Belousov]

On Thu, Sep 29, 2011 at 02:52:31PM +0300, Alexandr Kovalenko wrote:
> Hello!
> 
> I'm running 9.0-BETA3 (r225827) and now rebuilding all my 1215 ports
> (I've upgraded from 8.2). I'm getting panic. Is it known
> problem/already fixed somewhere?
> 
> FreeBSD mile.xxx.ua 9.0-BETA3 FreeBSD 9.0-BETA3 #0 r225827: Wed Sep 28
> 17:11:17 EEST 2011     root at mile.xxx.ua:/usr/obj/usr/src/sys/mile-9
> i386
> 
> Unread portion of the kernel message buffer:
> panic: vm_page_unwire: page 0xc2a38dc8's wire count is zero
> cpuid = 1
> Uptime: 16h6m53s
> Physical memory: 1904 MB
> Dumping 367 MB: 352 336 320 304 288 272 256 240 224 208 192 176 160
> 144 128 112 96 80 64 48 32 16
> 
> #0  doadump (textdump=1) at pcpu.h:244
> #1  0xc071e5cb in kern_reboot (howto=260)
>     at /usr/src/sys/kern/kern_shutdown.c:442
> #2  0xc071e82b in panic (fmt=Variable "fmt" is not available.
> ) at /usr/src/sys/kern/kern_shutdown.c:607
> #3  0xc0966903 in vm_page_unwire (m=0xc2a38dc8, activate=0)
>     at /usr/src/sys/vm/vm_page.c:1905
Please do "frame 2", then "p/x *m" and show the result.

> #4  0xc0796b80 in vfs_vmio_release (bp=0xde8bcbf4)
>     at /usr/src/sys/kern/vfs_bio.c:1638
> #5  0xc0798813 in getnewbuf (vp=0xc6ea3550, slpflag=0, slptimeo=0,
>     size=16384, maxsize=16384, gbflags=0) at /usr/src/sys/kern/vfs_bio.c:1949
> #6  0xc0799f2a in getblk (vp=0xc6ea3550, blkno=2520, size=16384, slpflag=0,
>     slptimeo=0, flags=Variable "flags" is not available.
> ) at /usr/src/sys/kern/vfs_bio.c:2788
> #7  0xc079d49c in cluster_rbuild (vp=0xc6ea3550, filesize=44505088, lbn=2520,
>     blkno=1209440, size=16384, run=Variable "run" is not available.
> ) at /usr/src/sys/kern/vfs_cluster.c:332
> #8  0xc079e145 in cluster_read (vp=0xc6ea3550, filesize=44505088,
>     lblkno=2520, size=16384, cred=0x0, totread=1024, seqcount=7,
>     bpp=0xf5824b60) at /usr/src/sys/kern/vfs_cluster.c:254
> #9  0xc0934cf5 in ffs_read (ap=0xf5824bac)
>     at /usr/src/sys/ufs/ffs/ffs_vnops.c:514
> #10 0xc09ccb92 in VOP_READ_APV (vop=0xc0aa6a80, a=0xf5824bac)
>     at vnode_if.c:887
> #11 0xc07c1120 in vn_read (fp=0xc5474508, uio=0xf5824c48,
>     active_cred=0xc56a4d80, flags=1, td=0xc5b76b80) at vnode_if.h:384
> #12 0xc076380e in dofileread (td=0xc5b76b80, fd=3, fp=0xc5474508,
>     auio=0xf5824c48, offset=41189376, flags=1) at file.h:254
> #13 0xc07639f5 in kern_preadv (td=0xc5b76b80, fd=3, auio=0xf5824c48,
>     offset=41189376) at /usr/src/sys/kern/sys_generic.c:288
> #14 0xc0763b0d in sys_pread (td=0xc5b76b80, uap=0xf5824cec)
>     at /usr/src/sys/kern/sys_generic.c:189
> #15 0xc09accf5 in syscall (frame=0xf5824d28) at subr_syscall.c:131
> #16 0xc0996db1 in Xint0x80_syscall ()
>     at /usr/src/sys/i386/i386/exception.s:266
> #17 0x00000033 in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> 
> -- 
> Alexandr Kovalenko
> http://uafug.org.ua/
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