panic: lock error near wapbl_begin

[Lars Nordlund <lars.nordlund%hem.utfors.se@localhost>]

Hi

I am running NetBSD 4.99.72 amd64.

When pummeling on:

wd0 at atabus6 drive 0: <SAMSUNG HD300LJ>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 279 GB, 581418 cyl, 16 head, 63 sec, 512 bytes/sect x 586070255
sectors wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 7
wd0(piixide1:0:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133)
(using DMA)

mounted as:

/dev/wd0e on /mnt/kalle type ffs (log, NFS exported, local)

I see this panic (hand-copied from screen..):

lock address: 0xffff8000044fda78
current cpu: 0
current lwp: 0xffff800046913020
owner/count: 0xffff800046913020 flags 0x0000000000000004

panic: lock error
fatal breakpoint in supervisor mode
trap type 1 code 0 rip ffffffff80501fc5 cs 8 rflags 246 cr2
ffff8000495e2000 cpl 0 rsp ffff80004ba783a0

Stopped in pid 1812.1 (gtk-gnutella) at netbsd:breakpoint +0x5: leave
breakpoint() at netbsd:breakpoint+0x5
panic() at netbsd:panic+0x260
lockdebug_abort() at netbsd:lockdebug_abort+0x42
rw_vector_enter() at netbsd:wapbl_begin+0x76
ffs_gop_write() at netbsd:ffs_gop_write+0x87
genfs_do_putpages at netbsd:genfs_do_putpages+0x9bb
VOP_PUTPAGES() at netbsd:VOP_PUTPAGES+0x71
ffs_truncate() at netbsd:ffs_truncate+0x3af
ufs_setattr() at netbsd:ufs_setattr+0x33f
VOP_SETATTR() at netbsd:VOP_SETATTR+0x63
sys_truncate at netbsd:sys_truncate+0xf1
syscall at netbsd:syscall+0x9a

Too bad I did not use LOCKDEBUG at the time.


Best regards,
        Lars Nordlund