Re: beta2 panic: VAPPEND without VWRITE

2011-10-05 Thread Harald Schmalzbauer
schrieb Rick Macklem am 02.10.2011 00:39 (localtime):
 Harald Schmalzbauer wrote:
 schrieb Attilio Rao am 01.10.2011 16:49 (localtime):
 Can you please show the panic message?

 Sorry, I forgot to add it here:

 free indoe /var/123088 had 8 blocks
 panic: VAPPEND withour VWRITE
 cpuid = 0
 KDB: enter: panic
 [ thread pid 1445 tid 100126 ]
 Stopped at kbd_enter+0x2b: movq $0,0x918a52(%rip)
 db bt
 Tracing pid 1445 tid 100126 td 0xfe000510d460
 kdb_enter() at kbd_enter+0x3b
 panic() at panic+0x180
 vn_isdisk() at vn_isdisk
 ufs_accessx() at ufs_accessx+0x188
 vop_stdaccess() at vop_stdaccess+0x43
 unionfs_access() at unionfs_access+0x1c4
 vn_open_cred() at vn_open_cred+0x547
 kern_opneat() at kern_openat+0x1f9
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (5, FreeBSD ELF64, open), rip = 0x801799f2c, rsp =
 0x7fffb388, rbp = 0x8 ---

 I'ts reproducable with exact the same hex-numbers with 'scp' when scp
 tries to alter knwon_hosts, which is on unionfs.

 You could try the attached one line patch. Since VAPPEND is a modifier
 for VWRITE, it makes sense to clear it along with VWRITE, I think?
 
 rick

Thanks for your help. Unfortunately I can neither comment on the patch,
nor reproduce the panic... I tried the patch and all seems fine, but
also without the patch (the exactly same kernel some days ago, but
machine was rebooted since). Of course, the machine has been rebooted
after the panic too, when I was able to reproduce the panic easily.
Any idea why the pnaic was once reproducable and now isn't anymore? Of
course, _nothing_ was changed since then, besides bootme flag on one
GPT partition. 9-beta2 never booted since then... No hardware has
changed either !?! *kopfkratz*

Thanks,

-Harry

 Here's some LORs, I havenÄt checked if they're already known. I don't
 have the known-LORs-URL handy...

 lock order reversal:
 1st 0xfe000519c278 unionfs (unionfs) @
 /usr/src/sys/modules/unionfs/../../fs/unionfs/union_subr.c:356
 2nd 0xfe000519c458 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2246
 KDB: stack backtrace:
 db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
 kdb_backtrace() at kdb_backtrace+0x37
 _witness_debugger() at _witness_debugger+0x2e
 witness_checkorder() at witness_checkorder+0x807
 __lockmgr_args() at __lockmgr_args+0xdc6
 ffs_lock() at ffs_lock+0x8c
 VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
 _vn_lock() at _vn_lock+0x47
 vputx() at vputx+0x328
 unionfs_noderem() at unionfs_noderem+0x1c4
 unionfs_reclaim() at unionfs_reclaim+0x11
 vgonel() at vgonel+0x105
 vrecycle() at vrecycle+0x4c
 unionfs_inactive() at unionfs_inactive+0x20
 vinactive() at vinactive+0x72
 vputx() at vputx+0x386
 kern_statat_vnhook() at kern_statat_vnhook+0x11d
 kern_statat() at kern_statat+0x15
 stat() at stat+0x2a
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (188, FreeBSD ELF64, stat), rip = 0x800dc7ecc, rsp =
 0x7fffd6a8, rbp = 0x801441190 ---
 lock order reversal:
 1st 0xff80e9bf59f8 bufwait (bufwait) @
 /usr/src/sys/kern/vfs_bio.c:2658
 2nd 0xfe00051a7a00 dirhash (dirhash) @
 /usr/src/sys/ufs/ufs/ufs_dirhash.c:284
 KDB: stack backtrace:
 db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
 kdb_backtrace() at kdb_backtrace+0x37
 _witness_debugger() at _witness_debugger+0x2e
 witness_checkorder() at witness_checkorder+0x807
 _sx_xlock() at _sx_xlock+0x55
 ufsdirhash_acquire() at ufsdirhash_acquire+0x33
 ufsdirhash_add() at ufsdirhash_add+0x19
 ufs_direnter() at ufs_direnter+0x909
 ufs_mkdir() at ufs_mkdir+0x44d
 VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93
 kern_mkdirat() at kern_mkdirat+0x290
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (136, FreeBSD ELF64, mkdir), rip = 0x800933eec, rsp =
 0x7fffd768, rbp = 0x800c07050 ---
 lock order reversal:
 1st 0xfe000514f818 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134
 2nd 0xff80e9bf59f8 bufwait (bufwait) @
 /usr/src/sys/ufs/ffs/ffs_vnops.c:260
 3rd 0xfe0005706278 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134
 KDB: stack backtrace:
 db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
 kdb_backtrace() at kdb_backtrace+0x37
 _witness_debugger() at _witness_debugger+0x2e
 witness_checkorder() at witness_checkorder+0x807
 __lockmgr_args() at __lockmgr_args+0xdc6
 ffs_lock() at ffs_lock+0x8c
 VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
 _vn_lock() at _vn_lock+0x47
 vget() at vget+0x7b
 vfs_hash_get() at vfs_hash_get+0xd5
 ffs_vgetf() at ffs_vgetf+0x48
 softdep_sync_buf() at softdep_sync_buf+0x393
 ffs_syncvnode() at ffs_syncvnode+0x2b3
 ffs_truncate() at ffs_truncate+0x477
 ufs_direnter() at ufs_direnter+0x73b
 ufs_mkdir() at ufs_mkdir+0x44d
 VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93
 kern_mkdirat() at kern_mkdirat+0x290
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (136, FreeBSD 

beta2 panic: VAPPEND without VWRITE

2011-10-01 Thread Harald Schmalzbauer
Hello,

I got the following panic with 9.0-beta2:

cpuid = 0
KDB: enter: panic
[ thread pid 1445 tid 100126 ]
Stopped at  kbd_enter+0x2b: movq$0,0x918a52(%rip)
db bt
Tracing pid 1445 tid 100126 td 0xfe000510d460
kdb_enter() at kbd_enter+0x3b
panic() at panic+0x180
vn_isdisk() at vn_isdisk
ufs_accessx() at ufs_accessx+0x188
vop_stdaccess() at vop_stdaccess+0x43
unionfs_access() at unionfs_access+0x1c4
vn_open_cred() at vn_open_cred+0x547
kern_opneat() at kern_openat+0x1f9
syscallenter() at syscallenter+0x1aa
syscall() at syscall+0x4c
Xfast_syscall() at Xfast_syscall+0xdd
--- syscall (5, FreeBSD ELF64, open), rip = 0x801799f2c, rsp =
0x7fffb388, rbp = 0x8 ---

Please tell how to provide more information if needed.

Thanks,

-Harry



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Re: beta2 panic: VAPPEND without VWRITE

2011-10-01 Thread Attilio Rao
Can you please show the panic message?

Attilio

2011/10/1 Harald Schmalzbauer h.schmalzba...@omnilan.de:
 Hello,

 I got the following panic with 9.0-beta2:

 cpuid = 0
 KDB: enter: panic
 [ thread pid 1445 tid 100126 ]
 Stopped at      kbd_enter+0x2b: movq    $0,0x918a52(%rip)
 db bt
 Tracing pid 1445 tid 100126 td 0xfe000510d460
 kdb_enter() at kbd_enter+0x3b
 panic() at panic+0x180
 vn_isdisk() at vn_isdisk
 ufs_accessx() at ufs_accessx+0x188
 vop_stdaccess() at vop_stdaccess+0x43
 unionfs_access() at unionfs_access+0x1c4
 vn_open_cred() at vn_open_cred+0x547
 kern_opneat() at kern_openat+0x1f9
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (5, FreeBSD ELF64, open), rip = 0x801799f2c, rsp =
 0x7fffb388, rbp = 0x8 ---

 Please tell how to provide more information if needed.

 Thanks,

 -Harry





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Re: beta2 panic: VAPPEND without VWRITE

2011-10-01 Thread Harald Schmalzbauer
schrieb Attilio Rao am 01.10.2011 16:49 (localtime):
 Can you please show the panic message?

Sorry, I forgot to add it here:

free indoe /var/123088 had 8 blocks
panic: VAPPEND withour VWRITE
 cpuid = 0
 KDB: enter: panic
 [ thread pid 1445 tid 100126 ]
 Stopped at  kbd_enter+0x2b: movq$0,0x918a52(%rip)
 db bt
 Tracing pid 1445 tid 100126 td 0xfe000510d460
 kdb_enter() at kbd_enter+0x3b
 panic() at panic+0x180
 vn_isdisk() at vn_isdisk
 ufs_accessx() at ufs_accessx+0x188
 vop_stdaccess() at vop_stdaccess+0x43
 unionfs_access() at unionfs_access+0x1c4
 vn_open_cred() at vn_open_cred+0x547
 kern_opneat() at kern_openat+0x1f9
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (5, FreeBSD ELF64, open), rip = 0x801799f2c, rsp =
 0x7fffb388, rbp = 0x8 ---

I'ts reproducable with exact the same hex-numbers with 'scp' when scp
tries to alter knwon_hosts, which is on unionfs.

Here's some LORs, I havenÄt checked if they're already known. I don't
have the known-LORs-URL handy...

lock order reversal:
 1st 0xfe000519c278 unionfs (unionfs) @
/usr/src/sys/modules/unionfs/../../fs/unionfs/union_subr.c:356
 2nd 0xfe000519c458 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2246
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
kdb_backtrace() at kdb_backtrace+0x37
_witness_debugger() at _witness_debugger+0x2e
witness_checkorder() at witness_checkorder+0x807
__lockmgr_args() at __lockmgr_args+0xdc6
ffs_lock() at ffs_lock+0x8c
VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
_vn_lock() at _vn_lock+0x47
vputx() at vputx+0x328
unionfs_noderem() at unionfs_noderem+0x1c4
unionfs_reclaim() at unionfs_reclaim+0x11
vgonel() at vgonel+0x105
vrecycle() at vrecycle+0x4c
unionfs_inactive() at unionfs_inactive+0x20
vinactive() at vinactive+0x72
vputx() at vputx+0x386
kern_statat_vnhook() at kern_statat_vnhook+0x11d
kern_statat() at kern_statat+0x15
stat() at stat+0x2a
syscallenter() at syscallenter+0x1aa
syscall() at syscall+0x4c
Xfast_syscall() at Xfast_syscall+0xdd
--- syscall (188, FreeBSD ELF64, stat), rip = 0x800dc7ecc, rsp =
0x7fffd6a8, rbp = 0x801441190 ---
lock order reversal:
 1st 0xff80e9bf59f8 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2658
 2nd 0xfe00051a7a00 dirhash (dirhash) @
/usr/src/sys/ufs/ufs/ufs_dirhash.c:284
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
kdb_backtrace() at kdb_backtrace+0x37
_witness_debugger() at _witness_debugger+0x2e
witness_checkorder() at witness_checkorder+0x807
_sx_xlock() at _sx_xlock+0x55
ufsdirhash_acquire() at ufsdirhash_acquire+0x33
ufsdirhash_add() at ufsdirhash_add+0x19
ufs_direnter() at ufs_direnter+0x909
ufs_mkdir() at ufs_mkdir+0x44d
VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93
kern_mkdirat() at kern_mkdirat+0x290
syscallenter() at syscallenter+0x1aa
syscall() at syscall+0x4c
Xfast_syscall() at Xfast_syscall+0xdd
--- syscall (136, FreeBSD ELF64, mkdir), rip = 0x800933eec, rsp =
0x7fffd768, rbp = 0x800c07050 ---
lock order reversal:
 1st 0xfe000514f818 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134
 2nd 0xff80e9bf59f8 bufwait (bufwait) @
/usr/src/sys/ufs/ffs/ffs_vnops.c:260
 3rd 0xfe0005706278 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
kdb_backtrace() at kdb_backtrace+0x37
_witness_debugger() at _witness_debugger+0x2e
witness_checkorder() at witness_checkorder+0x807
__lockmgr_args() at __lockmgr_args+0xdc6
ffs_lock() at ffs_lock+0x8c
VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
_vn_lock() at _vn_lock+0x47
vget() at vget+0x7b
vfs_hash_get() at vfs_hash_get+0xd5
ffs_vgetf() at ffs_vgetf+0x48
softdep_sync_buf() at softdep_sync_buf+0x393
ffs_syncvnode() at ffs_syncvnode+0x2b3
ffs_truncate() at ffs_truncate+0x477
ufs_direnter() at ufs_direnter+0x73b
ufs_mkdir() at ufs_mkdir+0x44d
VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93
kern_mkdirat() at kern_mkdirat+0x290
syscallenter() at syscallenter+0x1aa
syscall() at syscall+0x4c
Xfast_syscall() at Xfast_syscall+0xdd
--- syscall (136, FreeBSD ELF64, mkdir), rip = 0x800933eec, rsp =
0x7fffdbb8, rbp = 0x7fffdee6 ---

Thanks,

-Harry

 cpuid = 0
 KDB: enter: panic
 [ thread pid 1445 tid 100126 ]
 Stopped at  kbd_enter+0x2b: movq$0,0x918a52(%rip)
 db bt
 Tracing pid 1445 tid 100126 td 0xfe000510d460
 kdb_enter() at kbd_enter+0x3b
 panic() at panic+0x180
 vn_isdisk() at vn_isdisk
 ufs_accessx() at ufs_accessx+0x188
 vop_stdaccess() at vop_stdaccess+0x43
 unionfs_access() at unionfs_access+0x1c4
 vn_open_cred() at vn_open_cred+0x547
 kern_opneat() at kern_openat+0x1f9
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (5, FreeBSD ELF64, open), rip = 0x801799f2c, rsp =
 0x7fffb388, rbp = 0x8 ---



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Re: beta2 panic: VAPPEND without VWRITE

2011-10-01 Thread Rick Macklem
Harald Schmalzbauer wrote:
 schrieb Attilio Rao am 01.10.2011 16:49 (localtime):
  Can you please show the panic message?
 
 Sorry, I forgot to add it here:
 
 free indoe /var/123088 had 8 blocks
 panic: VAPPEND withour VWRITE
  cpuid = 0
  KDB: enter: panic
  [ thread pid 1445 tid 100126 ]
  Stopped at kbd_enter+0x2b: movq $0,0x918a52(%rip)
  db bt
  Tracing pid 1445 tid 100126 td 0xfe000510d460
  kdb_enter() at kbd_enter+0x3b
  panic() at panic+0x180
  vn_isdisk() at vn_isdisk
  ufs_accessx() at ufs_accessx+0x188
  vop_stdaccess() at vop_stdaccess+0x43
  unionfs_access() at unionfs_access+0x1c4
  vn_open_cred() at vn_open_cred+0x547
  kern_opneat() at kern_openat+0x1f9
  syscallenter() at syscallenter+0x1aa
  syscall() at syscall+0x4c
  Xfast_syscall() at Xfast_syscall+0xdd
  --- syscall (5, FreeBSD ELF64, open), rip = 0x801799f2c, rsp =
  0x7fffb388, rbp = 0x8 ---
 
 I'ts reproducable with exact the same hex-numbers with 'scp' when scp
 tries to alter knwon_hosts, which is on unionfs.
 
You could try the attached one line patch. Since VAPPEND is a modifier
for VWRITE, it makes sense to clear it along with VWRITE, I think?

rick

 Here's some LORs, I havenÄt checked if they're already known. I don't
 have the known-LORs-URL handy...
 
 lock order reversal:
 1st 0xfe000519c278 unionfs (unionfs) @
 /usr/src/sys/modules/unionfs/../../fs/unionfs/union_subr.c:356
 2nd 0xfe000519c458 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2246
 KDB: stack backtrace:
 db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
 kdb_backtrace() at kdb_backtrace+0x37
 _witness_debugger() at _witness_debugger+0x2e
 witness_checkorder() at witness_checkorder+0x807
 __lockmgr_args() at __lockmgr_args+0xdc6
 ffs_lock() at ffs_lock+0x8c
 VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
 _vn_lock() at _vn_lock+0x47
 vputx() at vputx+0x328
 unionfs_noderem() at unionfs_noderem+0x1c4
 unionfs_reclaim() at unionfs_reclaim+0x11
 vgonel() at vgonel+0x105
 vrecycle() at vrecycle+0x4c
 unionfs_inactive() at unionfs_inactive+0x20
 vinactive() at vinactive+0x72
 vputx() at vputx+0x386
 kern_statat_vnhook() at kern_statat_vnhook+0x11d
 kern_statat() at kern_statat+0x15
 stat() at stat+0x2a
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (188, FreeBSD ELF64, stat), rip = 0x800dc7ecc, rsp =
 0x7fffd6a8, rbp = 0x801441190 ---
 lock order reversal:
 1st 0xff80e9bf59f8 bufwait (bufwait) @
 /usr/src/sys/kern/vfs_bio.c:2658
 2nd 0xfe00051a7a00 dirhash (dirhash) @
 /usr/src/sys/ufs/ufs/ufs_dirhash.c:284
 KDB: stack backtrace:
 db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
 kdb_backtrace() at kdb_backtrace+0x37
 _witness_debugger() at _witness_debugger+0x2e
 witness_checkorder() at witness_checkorder+0x807
 _sx_xlock() at _sx_xlock+0x55
 ufsdirhash_acquire() at ufsdirhash_acquire+0x33
 ufsdirhash_add() at ufsdirhash_add+0x19
 ufs_direnter() at ufs_direnter+0x909
 ufs_mkdir() at ufs_mkdir+0x44d
 VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93
 kern_mkdirat() at kern_mkdirat+0x290
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (136, FreeBSD ELF64, mkdir), rip = 0x800933eec, rsp =
 0x7fffd768, rbp = 0x800c07050 ---
 lock order reversal:
 1st 0xfe000514f818 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134
 2nd 0xff80e9bf59f8 bufwait (bufwait) @
 /usr/src/sys/ufs/ffs/ffs_vnops.c:260
 3rd 0xfe0005706278 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134
 KDB: stack backtrace:
 db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
 kdb_backtrace() at kdb_backtrace+0x37
 _witness_debugger() at _witness_debugger+0x2e
 witness_checkorder() at witness_checkorder+0x807
 __lockmgr_args() at __lockmgr_args+0xdc6
 ffs_lock() at ffs_lock+0x8c
 VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b
 _vn_lock() at _vn_lock+0x47
 vget() at vget+0x7b
 vfs_hash_get() at vfs_hash_get+0xd5
 ffs_vgetf() at ffs_vgetf+0x48
 softdep_sync_buf() at softdep_sync_buf+0x393
 ffs_syncvnode() at ffs_syncvnode+0x2b3
 ffs_truncate() at ffs_truncate+0x477
 ufs_direnter() at ufs_direnter+0x73b
 ufs_mkdir() at ufs_mkdir+0x44d
 VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93
 kern_mkdirat() at kern_mkdirat+0x290
 syscallenter() at syscallenter+0x1aa
 syscall() at syscall+0x4c
 Xfast_syscall() at Xfast_syscall+0xdd
 --- syscall (136, FreeBSD ELF64, mkdir), rip = 0x800933eec, rsp =
 0x7fffdbb8, rbp = 0x7fffdee6 ---
 
 Thanks,
 
 -Harry
 
  cpuid = 0
  KDB: enter: panic
  [ thread pid 1445 tid 100126 ]
  Stopped at kbd_enter+0x2b: movq $0,0x918a52(%rip)
  db bt
  Tracing pid 1445 tid 100126 td 0xfe000510d460
  kdb_enter() at kbd_enter+0x3b
  panic() at panic+0x180
  vn_isdisk() at vn_isdisk
  ufs_accessx() at ufs_accessx+0x188
  vop_stdaccess() at vop_stdaccess+0x43
  unionfs_access() at unionfs_access+0x1c4
  vn_open_cred() at vn_open_cred+0x547
  kern_opneat() at kern_openat+0x1f9
  syscallenter() at syscallenter+0x1aa
  syscall() at syscall+0x4c