Date: Tue, 3 May 2011 22:40:26 -0700 From: Garrett Cooper <yanegomi@gmail.com> To: Jeff Roberson <jeff@freebsd.org>, Marshall Kirk McKusick <mckusick@mckusick.com> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Nasty non-recursive lockmgr panic on softdep only enabled UFS partition when filesystem full Message-ID: <BANLkTik4=O_1PWB2GzGzY=m51dG-Kbhe%2BQ@mail.gmail.com>
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Hi Jeff and Dr. McKusick,
Ran into this panic when /usr ran out of space doing a make
universe on amd64/r221219 (it took ~15 minutes for the panic to occur
after the filesystem ran out of space -- wasn't quite sure what it was
doing at the time):
pid 24486 (ld), uid 0 inumber 9993 on /usr: filesystem full
pid 24511 (config), uid 0 inumber 361082 on /usr: filesystem full
pid 24494 (make), uid 0 inumber 1886295 on /usr: filesystem full
panic: __lockmgr_args: recursing on non recursive lockmgr bufwait @
/usr/src/sys/ufs/ffs/ffs_softdep.c:11025
(kgdb) #0 doadump () at pcpu.h:224
#1 0xffffffff802af22c in db_fncall (dummy1=Variable "dummy1" is not available.
)
at /usr/src/sys/ddb/db_command.c:548
#2 0xffffffff802af561 in db_command (last_cmdp=0xffffffff808f93c0,
cmd_table=Variable "cmd_table" is not available.
) at /usr/src/sys/ddb/db_command.c:445
#3 0xffffffff802af7a9 in db_command_loop ()
at /usr/src/sys/ddb/db_command.c:498
#4 0xffffffff802b1737 in db_trap (type=Variable "type" is not available.
) at /usr/src/sys/ddb/db_main.c:229
#5 0xffffffff803f7d48 in kdb_trap (type=3, code=0, tf=0xffffff834e4c8ef0)
at /usr/src/sys/kern/subr_kdb.c:533
#6 0xffffffff80599da5 in trap (frame=0xffffff834e4c8ef0)
at /usr/src/sys/amd64/amd64/trap.c:590
#7 0xffffffff80584ef3 in calltrap ()
at /usr/src/sys/amd64/amd64/exception.S:228
#8 0xffffffff803f7baf in kdb_enter (why=0xffffffff806178cf "panic",
msg=0xa <Address 0xa out of bounds>) at cpufunc.h:63
#9 0xffffffff803c4b6f in panic (fmt=Variable "fmt" is not available.
)
at /usr/src/sys/kern/kern_shutdown.c:584
#10 0xffffffff803af3ac in __lockmgr_args (lk=0x100, flags=0,
ilk=0xfffffe00b95766c0, wmesg=Variable "wmesg" is not available.
) at /usr/src/sys/kern/kern_lock.c:720
#11 0xffffffff8054240b in softdep_sync_metadata (vp=0xfffffe017fe5d000)
at lockmgr.h:97
#12 0xffffffff80548e90 in ffs_syncvnode (vp=0xfffffe017fe5d000,
waitfor=Variable "waitfor" is not available.
)
at /usr/src/sys/ufs/ffs/ffs_vnops.c:331
#13 0xffffffff8053be23 in softdep_request_cleanup (fs=0xfffffe00086ef000,
vp=0xfffffe00b95765a0, cred=Variable "cred" is not available.
) at /usr/src/sys/ufs/ffs/ffs_softdep.c:11392
#14 0xffffffff80523895 in ffs_realloccg (ip=0xfffffe00b9285bd0, lbprev=0,
bprev=10092847, bpref=10723304, osize=2048, nsize=4096, flags=65536,
cred=0xfffffe026e905a00, bpp=0xffffff834e4c95f0)
at /usr/src/sys/ufs/ffs/ffs_alloc.c:423
#15 0xffffffff805266de in ffs_balloc_ufs2 (vp=0xfffffe00b95765a0,
startoffset=Variable "startoffset" is not available.
) at /usr/src/sys/ufs/ffs/ffs_balloc.c:699
#16 0xffffffff8054fbfb in ufs_direnter (dvp=0xfffffe00b95765a0,
tvp=0xfffffe00701c4000, dirp=0xffffff834e4c97b0, cnp=Variable
"cnp" is not available.
)
at /usr/src/sys/ufs/ufs/ufs_lookup.c:910
#17 0xffffffff80557af8 in ufs_mkdir (ap=0xffffff834e4c9a90)
at /usr/src/sys/ufs/ufs/ufs_vnops.c:1961
#18 0xffffffff805d666b in VOP_MKDIR_APV (vop=0xffffffff808c2a40,
a=0xffffff834e4c9a90) at vnode_if.c:1534
#19 0xffffffff80457eb8 in kern_mkdirat (td=0xfffffe0149df4000, fd=-100,
path=0x6096e0 <Address 0x6096e0 out of bounds>, segflg=Variable
"segflg" is not available.
) at vnode_if.h:665
#20 0xffffffff80404cd1 in syscallenter (td=0xfffffe0149df4000,
sa=0xffffff834e4c9bb0) at /usr/src/sys/kern/subr_trap.c:344
#21 0xffffffff8059996e in syscall (frame=0xffffff834e4c9c50)
at /usr/src/sys/amd64/amd64/trap.c:910
#22 0xffffffff805851bd in Xfast_syscall ()
at /usr/src/sys/amd64/amd64/exception.S:384
#23 0x0000000800b3798c in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb)
$ sudo tunefs -p /usr
tunefs: POSIX.1e ACLs: (-a) disabled
tunefs: NFSv4 ACLs: (-N) disabled
tunefs: MAC multilabel: (-l) disabled
tunefs: soft updates: (-n) enabled
tunefs: soft update journaling: (-j) disabled
tunefs: gjournal: (-J) disabled
tunefs: trim: (-t) disabled
tunefs: maximum blocks per file in a cylinder group: (-e) 2048
tunefs: average file size: (-f) 16384
tunefs: average number of files in a directory: (-s) 64
tunefs: minimum percentage of free space: (-m) 8%
tunefs: optimization preference: (-o) time
tunefs: volume label: (-L)
Let me know what other commands you would like for me to run in kgdb.
Thanks,
-Garrett
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