Hello,
Please ignore the patch I sent in the last email. I got the diff from the
wrong tree and started seeing even worse messages with my patches on
(though the system keeps running).
Anyway, here I have a better version of the BUG message and backtrace, from
2.6.31-rc4-rt1 without any extra patch:
================================================
[ BUG: lock held when returning to user space! ]
------------------------------------------------
deluge/2889 is leaving the kernel with locks still held!
1 lock held by deluge/2889:
#0: (<NULL>){......}, at: [<ffffffffa02889e1>] ipt_do_table+0x10b/0x5ea [ip_tables]
BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
IP: [<ffffffff8108e41c>] wakeup_next_waiter+0x49/0x1a8
PGD 5b677067 PUD 5b678067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
last sysfs file: /sys/block/sda/queue/hw_sector_size
CPU 2
Modules linked in: fuse i915 drm i2c_algo_bit video output sco bridge stp bnep l2cap bluetooth rfkill sunrpc ipv6 ipt_REJECT xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state iptable_filter ip_tables x_tables dm_mirror dm_region_hash dm_log dm_multipath scsi_dh dm_mod uinput snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd firewire_ohci r8169 i2c_i801 firewire_core iTCO_wdt sr_mod soundcore iTCO_vendor_support i2c_core serio_raw sg pcspkr mii intel_agp snd_page_alloc cdrom button crc_itu_t ahci libata sd_mod scsi_mod crc_t10dif ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd [last unloaded: microcode]
Pid: 2879, comm: deluged Not tainted 2.6.31-rc4-rt1 #2 KQ260AA-AC4 a6540br
RIP: 0010:[<ffffffff8108e41c>] [<ffffffff8108e41c>] wakeup_next_waiter+0x49/0x1a8
RSP: 0018:ffff88005b47f538 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88005ca10800 RDI: ffff88005ca10100
RBP: ffff88005b47f578 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000001f80 R11: 00000000d6168ae4 R12: ffff8800047862e0
R13: ffffffffffffffe8 R14: 0000000000000001 R15: ffff8800790eedb0
FS: 00007f9fa0d80910(0000) GS:ffff8800045b4000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000040 CR3: 000000005b676000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Process deluged (pid: 2879, threadinfo ffff88005b47e000, task ffff88005ca10100)
Stack:
ffffffff813e6333 000000006e6b1112 ffff88005b47f578 ffff8800047862e0
<0> 0000000000000246 ffff880078ccc340 ffff88007cdb40ec ffff8800790eedb0
<0> ffff88005b47f5a8 ffffffff813e6362 00000000d6168ae4 000000006e6b1112
Call Trace:
[<ffffffff813e6333>] ? rt_spin_lock_slowunlock+0x27/0x8c
[<ffffffff813e6362>] rt_spin_lock_slowunlock+0x56/0x8c
[<ffffffff8108e77a>] rt_spin_lock_fastunlock.clone.2+0x5f/0x75
[<ffffffff813e6d6e>] rt_spin_unlock+0x3a/0x55
[<ffffffffa0288acd>] ? ipt_do_table+0x1f7/0x5ea [ip_tables]
[<ffffffffa0288e52>] ipt_do_table+0x57c/0x5ea [ip_tables]
[<ffffffff81369d04>] ? dst_output+0x0/0x39
[<ffffffffa02900fb>] ipt_local_out_hook+0x59/0x7b [iptable_filter]
[<ffffffff81357f7c>] nf_iterate+0x5c/0xb3
[<ffffffff81369d04>] ? dst_output+0x0/0x39
[<ffffffff81358060>] nf_hook_slow+0x8d/0x109
[<ffffffff81369d04>] ? dst_output+0x0/0x39
[<ffffffff8136a902>] ? ip_finish_output2+0x2a3/0x314
[<ffffffff8136a3a5>] nf_hook_thresh.clone.0+0x50/0x6d
[<ffffffff8136a453>] __ip_local_out+0x91/0xa7
[<ffffffff8136a48e>] ip_local_out+0x25/0x4d
[<ffffffff8136ac6a>] ip_queue_xmit+0x2f7/0x3b8
[<ffffffff8138015e>] tcp_transmit_skb+0x6ae/0x702
[<ffffffff81381f92>] tcp_write_xmit+0x7dd/0x8e3
[<ffffffff813820df>] tcp_push_one+0x47/0x5d
[<ffffffff8137608f>] tcp_sendmsg+0x6e8/0x898
[<ffffffff81320db0>] __sock_sendmsg+0x73/0x92
[<ffffffff813219a7>] sock_sendmsg+0xdb/0x108
[<ffffffff81073a80>] ? autoremove_wake_function+0x0/0x5f
[<ffffffff81159d7b>] ? ep_poll_callback+0x35/0x11e
[<ffffffff81159d7b>] ? ep_poll_callback+0x35/0x11e
[<ffffffff8132c5fa>] ? verify_iovec+0x60/0xb6
[<ffffffff81321c08>] sys_sendmsg+0x234/0x2c1
[<ffffffff810656c3>] ? sigprocmask+0x45/0xfb
[<ffffffff8112ba1c>] ? path_put+0x31/0x4c
[<ffffffff810b1d25>] ? audit_syscall_entry+0x12d/0x16d
[<ffffffff813e68a3>] ? lockdep_sys_exit_thunk+0x35/0x67
[<ffffffff8100c0db>] system_call_fastpath+0x16/0x1b
Code: 8b 3c 25 00 90 00 00 48 81 c7 e8 06 00 00 65 48 8b 04 25 28 00 00 00 48 89 45 c8 31 c0 e8 dd 95 35 00 49 8b 5c 24 50 4c 8d 6b e8 <4d> 39 65 58 74 04 0f 0b eb fe 49 8d 74 24 40 4c 89 ef e8 05 8d
RIP [<ffffffff8108e41c>] wakeup_next_waiter+0x49/0x1a8
RSP <ffff88005b47f538>
CR2: 0000000000000040
---[ end trace 02adbaae7c58a90e ]---
ata3.00: qc timeout (cmd 0xa0)
ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata3.00: irq_stat 0x40000001
ata3.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
cdb 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x5 (timeout)
ata3.00: status: { DRDY ERR }
ata3: hard resetting link
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata3.00: configured for UDMA/33
ata3: EH complete
ata3.00: qc timeout (cmd 0xa0)
ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata3.00: irq_stat 0x40000001
ata3.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
cdb 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x5 (timeout)
ata3.00: status: { DRDY ERR }
ata3: hard resetting link
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Looking for his old brown paper bag,
Luis
--
[ Luis Claudio R. Goncalves Bass - Gospel - RT ]
[ Fingerprint: 4FDD B8C4 3C59 34BD 8BE9 2696 7203 D980 A448 C8F8 ]
--
To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
