On 3. des.. 2008, at 20.43, Kostik Belousov wrote:
On Wed, Dec 03, 2008 at 08:12:22PM +0100, Frode Nordahl wrote:
(moved to freebsd-stable)
On 3. des.. 2008, at 18.39, Kostik Belousov wrote:
db> where
Tracing pid 41111 tid 100199 td 0xffffff0056f1f370
kdb_enter_why() at kdb_enter_why+0x3d
panic() at panic+0x17b
dqget() at dqget+0xaa4
getinoquota() at getinoquota+0x5b
ufs_access() at ufs_access+0x28c
ufs_lookup() at ufs_lookup+0x9fe
vfs_cache_lookup() at vfs_cache_lookup+0xf8
VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x40
lookup() at lookup+0x531
namei() at namei+0x35d
kern_rmdir() at kern_rmdir+0xbd
syscall() at syscall+0x256
Xfast_syscall() at Xfast_syscall+0xab
For the start, I want to see the content of the *dq in the dqget()
frame.
I am unable to get to *dq :-(
(kgdb) frame 10
#10 0xffffffff806dbc54 in dqget (vp=0xffffff011e0767e0, id=419444,
ump=0xffffff00038a9000, type=0, dqp=0xffffff0122e47268)
at /usr/src/sys/ufs/ufs/ufs_quota.c:1210
1210 panic("dqget: free dquot isn't");
If this is repeatable, change panic to
panic("dqget: free dquot isn't %p", dq);
and then in kgdb p/x *(struct dquot *)<printed value>
Got it!
panic: dqget: free dquot isn't dq=0xffffff00b3d27000
(kgdb) p/x *(struct dquot *)0xffffff00b3d27000
$1 = {dq_hash = {le_next = 0x0, le_prev = 0xffffff010b9da700},
dq_freelist = {
tqe_next = 0xffffff0055e2de00, tqe_prev = 0xffffffff80b03710},
dq_lock = {
lock_object = {lo_name = 0xffffffff8088c21c, lo_type =
0xffffffff8088c21c,
lo_flags = 0x1030000, lo_witness_data = {lod_list = {stqe_next
= 0x0},
lod_witness = 0x0}}, mtx_lock = 0x4, mtx_recurse = 0x0},
dq_flags = 0xc, dq_type = 0x0, dq_cnt = 0x0, dq_id = 0x16a37d,
dq_ump = 0xffffff00038e1600, dq_dqb = {dqb_bhardlimit = 0x0,
dqb_bsoftlimit = 0x0, dqb_curblocks = 0x0, dqb_ihardlimit = 0x0,
dqb_isoftlimit = 0x0, dqb_curinodes = 0x1, dqb_btime = 0x493ef2b5,
dqb_itime = 0x493ef2b5}}
Let me know if I can provide any more information!
Updated the crashinfo archive you got an URL to yesterday if you want
to poke around yourself.
--
Frode Nordahl
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