* 3.5-rc6 configfs BUG_ON
@ 2012-07-11 19:25 Dave Jones
2012-07-15 20:58 ` Joel Becker
0 siblings, 1 reply; 4+ messages in thread
From: Dave Jones @ 2012-07-11 19:25 UTC (permalink / raw)
To: Linux Kernel; +Cc: jlbec
kernel BUG at fs/configfs/dir.c:59!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU 4
Modules linked in:
ebtable_nat
nf_tproxy_core
hfsplus
ppp_synctty
async_tx
raid6_pq raid10 shpchp fakephp aer_inject ptp pps_core target_core_file target_core_iblock target_core_pscsi tcm_loop target_core_mod vga16fb sysimgblt fb_sys_fops syscopyarea vgastate output platform_lcd lcd sysfillrect n_r3964 n_gsm nozomi jsm serio_raw altera_ps2 input_polldev sparse_keymap uinput ipt_ULOG fuse tun binfmt_misc nfnetlink caif_socket caif phonet bluetooth rfkill can llc2 pppoe pppox ppp_generic slhc irda crc_ccitt rds af_key decnet rose x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode usb_debug pcspkr i2c_i801 e1000e nfsd nfs_acl auth_rpcgss lockd sunrpc i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: scsi_wait_scan]
Pid: 24175, comm: trinity-main Not tainted 3.5.0-rc6+ #102
RIP: 0010:[<ffffffff812562fb>] [<ffffffff812562fb>] configfs_d_iput+0x8b/0xa0
RSP: 0018:ffff88014325be08 EFLAGS: 00010282
RAX: ffffffff81256270 RBX: ffff88014159cb98 RCX: 000000000000c7d0
RDX: ffff880006bacd60 RSI: ffff880045f31540 RDI: ffff88000adf14d0
RBP: ffff88014325be18 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff880045f31540
R13: ffff8801238f79d0 R14: 0000000000000001 R15: 00000000053f411b
FS: 00007ff8895fa740(0000) GS:ffff880148400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000038e4e10310 CR3: 0000000140c57000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process trinity-main (pid: 24175, threadinfo ffff88014325a000, task ffff880006bacd60)
Stack:
ffff88000adf14d0 ffff880045f31540 ffff88014325be48 ffffffff811ec74f
ffff88000adf14d0 ffff8801238f79d0 ffff880045f31540 ffff88000adf1530
ffff88014325be78 ffffffff811ec8a2 ffff88014325beb8 00000000053f40b0
Call Trace:
[<ffffffff811ec74f>] d_kill+0xaf/0x120
[<ffffffff811ec8a2>] dput+0xe2/0x1d0
[<ffffffff811dfaea>] path_put+0x1a/0x30
[<ffffffff811d9705>] vfs_fstatat+0x55/0x70
[<ffffffff811d973e>] vfs_lstat+0x1e/0x20
[<ffffffff811d99ca>] sys_newlstat+0x1a/0x40
[<ffffffff81696aed>] system_call_fastpath+0x1a/0x1f
Code: f6 43 40 01 75 eb 48 8b 7b 50 e8 41 4d f6 ff 48 8b 3d c2 bf 7f 01 48 89 de e8 a2 52 f6 ff 4c 89 e7 e8 1a b5 f9 ff 5b 41 5c 5d c3 <0f> 0b be 9c 00 00 00 48 c7 c7 30 a2 9e 81 e8 42 2e e1 ff eb a7
RIP [<ffffffff812562fb>] configfs_d_iput+0x8b/0xa0
RSP <ffff88014325be08>
---[ end trace 65e130035db36f7d ]---
58 if (sd) {
59 BUG_ON(sd->s_dentry != dentry);
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 3.5-rc6 configfs BUG_ON
2012-07-11 19:25 3.5-rc6 configfs BUG_ON Dave Jones
@ 2012-07-15 20:58 ` Joel Becker
2012-07-15 23:58 ` Dave Jones
0 siblings, 1 reply; 4+ messages in thread
From: Joel Becker @ 2012-07-15 20:58 UTC (permalink / raw)
To: Dave Jones, Linux Kernel
On Wed, Jul 11, 2012 at 03:25:58PM -0400, Dave Jones wrote:
> kernel BUG at fs/configfs/dir.c:59!
> invalid opcode: 0000 [#1] PREEMPT SMP
> CPU 4
> Modules linked in:
> ebtable_nat
> nf_tproxy_core
> hfsplus
> ppp_synctty
> async_tx
> raid6_pq raid10 shpchp fakephp aer_inject ptp pps_core target_core_file target_core_iblock target_core_pscsi tcm_loop target_core_mod vga16fb sysimgblt fb_sys_fops syscopyarea vgastate output platform_lcd lcd sysfillrect n_r3964 n_gsm nozomi jsm serio_raw altera_ps2 input_polldev sparse_keymap uinput ipt_ULOG fuse tun binfmt_misc nfnetlink caif_socket caif phonet bluetooth rfkill can llc2 pppoe pppox ppp_generic slhc irda crc_ccitt rds af_key decnet rose x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode usb_debug pcspkr i2c_i801 e1000e nfsd nfs_acl auth_rpcgss lockd sunrpc i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: scsi_wait_scan]
>
> Pid: 24175, comm: trinity-main Not tainted 3.5.0-rc6+ #102
> RIP: 0010:[<ffffffff812562fb>] [<ffffffff812562fb>] configfs_d_iput+0x8b/0xa0
> RSP: 0018:ffff88014325be08 EFLAGS: 00010282
> RAX: ffffffff81256270 RBX: ffff88014159cb98 RCX: 000000000000c7d0
> RDX: ffff880006bacd60 RSI: ffff880045f31540 RDI: ffff88000adf14d0
> RBP: ffff88014325be18 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000001 R11: 0000000000000000 R12: ffff880045f31540
> R13: ffff8801238f79d0 R14: 0000000000000001 R15: 00000000053f411b
> FS: 00007ff8895fa740(0000) GS:ffff880148400000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00000038e4e10310 CR3: 0000000140c57000 CR4: 00000000001407e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process trinity-main (pid: 24175, threadinfo ffff88014325a000, task ffff880006bacd60)
> Stack:
> ffff88000adf14d0 ffff880045f31540 ffff88014325be48 ffffffff811ec74f
> ffff88000adf14d0 ffff8801238f79d0 ffff880045f31540 ffff88000adf1530
> ffff88014325be78 ffffffff811ec8a2 ffff88014325beb8 00000000053f40b0
> Call Trace:
> [<ffffffff811ec74f>] d_kill+0xaf/0x120
> [<ffffffff811ec8a2>] dput+0xe2/0x1d0
> [<ffffffff811dfaea>] path_put+0x1a/0x30
> [<ffffffff811d9705>] vfs_fstatat+0x55/0x70
> [<ffffffff811d973e>] vfs_lstat+0x1e/0x20
> [<ffffffff811d99ca>] sys_newlstat+0x1a/0x40
> [<ffffffff81696aed>] system_call_fastpath+0x1a/0x1f
> Code: f6 43 40 01 75 eb 48 8b 7b 50 e8 41 4d f6 ff 48 8b 3d c2 bf 7f 01 48 89 de e8 a2 52 f6 ff 4c 89 e7 e8 1a b5 f9 ff 5b 41 5c 5d c3 <0f> 0b be 9c 00 00 00 48 c7 c7 30 a2 9e 81 e8 42 2e e1 ff eb a7
> RIP [<ffffffff812562fb>] configfs_d_iput+0x8b/0xa0
> RSP <ffff88014325be08>
> ---[ end trace 65e130035db36f7d ]---
>
> 58 if (sd) {
> 59 BUG_ON(sd->s_dentry != dentry);
>
Dave,
What were you doing at the time? Is this ocfs2, dlm, target, or
what?
Joel
--
"Drake! We're LEAVING!"
http://www.jlbec.org/
jlbec@evilplan.org
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 3.5-rc6 configfs BUG_ON
2012-07-15 20:58 ` Joel Becker
@ 2012-07-15 23:58 ` Dave Jones
2012-08-15 8:30 ` Joel Becker
0 siblings, 1 reply; 4+ messages in thread
From: Dave Jones @ 2012-07-15 23:58 UTC (permalink / raw)
To: Linux Kernel
On Sun, Jul 15, 2012 at 01:58:46PM -0700, Joel Becker wrote:
> > Call Trace:
> > [<ffffffff811ec74f>] d_kill+0xaf/0x120
> > [<ffffffff811ec8a2>] dput+0xe2/0x1d0
> > [<ffffffff811dfaea>] path_put+0x1a/0x30
> > [<ffffffff811d9705>] vfs_fstatat+0x55/0x70
> > [<ffffffff811d973e>] vfs_lstat+0x1e/0x20
> > [<ffffffff811d99ca>] sys_newlstat+0x1a/0x40
> > [<ffffffff81696aed>] system_call_fastpath+0x1a/0x1f
> > Code: f6 43 40 01 75 eb 48 8b 7b 50 e8 41 4d f6 ff 48 8b 3d c2 bf 7f 01 48 89 de e8 a2 52 f6 ff 4c 89 e7 e8 1a b5 f9 ff 5b 41 5c 5d c3 <0f> 0b be 9c 00 00 00 48 c7 c7 30 a2 9e 81 e8 42 2e e1 ff eb a7
> > RIP [<ffffffff812562fb>] configfs_d_iput+0x8b/0xa0
> > RSP <ffff88014325be08>
> > ---[ end trace 65e130035db36f7d ]---
> >
> > 58 if (sd) {
> > 59 BUG_ON(sd->s_dentry != dentry);
> >
>
> Dave,
> What were you doing at the time? Is this ocfs2, dlm, target, or
> what?
>
> Joel
>
See http://codemonkey.org.uk/projects/trinity/
Running that with -c newlstat should trigger it.
(load configfs module first, no further config necessary)
Dave
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 3.5-rc6 configfs BUG_ON
2012-07-15 23:58 ` Dave Jones
@ 2012-08-15 8:30 ` Joel Becker
0 siblings, 0 replies; 4+ messages in thread
From: Joel Becker @ 2012-08-15 8:30 UTC (permalink / raw)
To: Dave Jones, Linux Kernel
On Sun, Jul 15, 2012 at 07:58:31PM -0400, Dave Jones wrote:
> On Sun, Jul 15, 2012 at 01:58:46PM -0700, Joel Becker wrote:
>
> > > Call Trace:
> > > [<ffffffff811ec74f>] d_kill+0xaf/0x120
> > > [<ffffffff811ec8a2>] dput+0xe2/0x1d0
> > > [<ffffffff811dfaea>] path_put+0x1a/0x30
> > > [<ffffffff811d9705>] vfs_fstatat+0x55/0x70
> > > [<ffffffff811d973e>] vfs_lstat+0x1e/0x20
> > > [<ffffffff811d99ca>] sys_newlstat+0x1a/0x40
> > > [<ffffffff81696aed>] system_call_fastpath+0x1a/0x1f
> > > Code: f6 43 40 01 75 eb 48 8b 7b 50 e8 41 4d f6 ff 48 8b 3d c2 bf 7f 01 48 89 de e8 a2 52 f6 ff 4c 89 e7 e8 1a b5 f9 ff 5b 41 5c 5d c3 <0f> 0b be 9c 00 00 00 48 c7 c7 30 a2 9e 81 e8 42 2e e1 ff eb a7
> > > RIP [<ffffffff812562fb>] configfs_d_iput+0x8b/0xa0
> > > RSP <ffff88014325be08>
> > > ---[ end trace 65e130035db36f7d ]---
> > >
> > > 58 if (sd) {
> > > 59 BUG_ON(sd->s_dentry != dentry);
> > >
> >
> > Dave,
> > What were you doing at the time? Is this ocfs2, dlm, target, or
> > what?
> >
> > Joel
> >
>
> See http://codemonkey.org.uk/projects/trinity/
> Running that with -c newlstat should trigger it.
> (load configfs module first, no further config necessary)
Cool tool. I presume that -c newlstat just randomly picks paths to
newlstat. I think I see what's happening, but I can't see what gets the
dirent into that state. Now to get a VM I can break.
Joel
--
"The trouble with being punctual is that nobody's there to
appreciate it."
- Franklin P. Jones
http://www.jlbec.org/
jlbec@evilplan.org
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-08-15 8:30 UTC | newest]
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2012-07-11 19:25 3.5-rc6 configfs BUG_ON Dave Jones
2012-07-15 20:58 ` Joel Becker
2012-07-15 23:58 ` Dave Jones
2012-08-15 8:30 ` Joel Becker
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