[Pkg-sysvinit-devel] Bug#454147: Kernel bug related to setting BOOTLOGD_ENABLE=yes

[Imran Chaudhry]

Like the above folks, I have also experienced this issue. Twice in a row.

My hypervisor system:
Linux xencore 2.6.26-2-xen-amd64 #1 SMP Fri Mar 27 07:12:15 UTC 2009 x86_64
GNU/Linux
# cat /etc/debian_version
5.0.1

Guest:
Linux imrandev.soton.smoothwall.net 2.6.26-2-xen-amd64 #1 SMP Fri Mar 27
07:12:15 UTC 2009 x86_64 GNU/Linux
# cat /etc/debian_version
5.0.1

I noticed that this occured after I set BOOTLOGD_ENABLE=yes (formerly
BOOTLOGD_ENABLE=no) in
/etc/default/bootlogd in my guest.

I was curious to see what boot up messages would be logged. There was
probably no reason to do this since  /var/log/boot only shows the default
logging entry.

Below is what was shown on the xm console <guest> screen. When I connected
this way I could not send any input to the terminal.

[46022.513876] ------------[ cut here ]------------
[46022.513890] kernel BUG at drivers/char/tty_io.c:811!
[46022.513894] invalid opcode: 0000 [1] SMP
[46022.513897] CPU 0
[46022.513900] Modules linked in: ipv6 nfs lockd nfs_acl sunrpc xt_tcpudp
iptable_filter iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack ip_tables
x_tables evdev ext3 jbd mbcache dm_mirror dm_log dm_snapshot dm_mod raid1
md_mod thermal_sys
[46022.513928] Pid: 882, comm: bootlogd Not tainted 2.6.26-2-xen-amd64 #1
[46022.513932] RIP: e030:[<ffffffff80359cad>]  [<ffffffff80359cad>]
tty_ldisc_put+0x34/0x5e
[46022.513941] RSP: e02b:ffff880007cc9e18  EFLAGS: 00010046
[46022.513944] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000042
[46022.513947] RDX: 0000000000000000 RSI: 0000000000000003 RDI:
ffffffff806000a4
[46022.513950] RBP: 0000000000000000 R08: 0000000000000008 R09:
ffff880001db6200
[46022.513953] R10: ffff880006bd2980 R11: 0000000000000003 R12:
0000000000000000
[46022.513955] R13: 0000000000000000 R14: 0000000000000000 R15:
ffff8800065c2800
[46022.513962] FS:  00007f563095e6e0(0000) GS:ffffffff80539000(0000)
knlGS:0000000000000000
[46022.513965] CS:  e033 DS: 0000 ES: 0000
[46022.513968] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[46022.513972] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[46022.513975] Process bootlogd (pid: 882, threadinfo ffff880007cc8000, task
ffff880007d6aa80)
[46022.513978] Stack:  ffff8800065c2800 ffff880006bd2800 0000000000000000
ffffffff8035c7f0
[46022.513985]  0000000c38967ce0 0000000000000000 0000000207cc9f50
0000000006bd2800
[46022.513990]  0000000000000003 ffff880006646140 ffff880007c16080
ffff880007940150
[46022.513995] Call Trace:
[46022.514000]  [<ffffffff8035c7f0>] release_dev+0x546/0x5ce
[46022.514006]  [<ffffffff80435bb7>] error_exit+0x0/0x69
[46022.514010]  [<ffffffff8035c889>] tty_release+0x11/0x1a
[46022.514015]  [<ffffffff8028b13e>] __fput+0xa1/0x16b
[46022.514019]  [<ffffffff8028885f>] filp_close+0x5d/0x65
[46022.514023]  [<ffffffff80289bc9>] sys_close+0xa5/0x101
[46022.514027]  [<ffffffff8020b528>] system_call+0x68/0x6d
[46022.514031]  [<ffffffff8020b4c0>] system_call+0x0/0x6d
[46022.514034]
[46022.514035]
[46022.514036] Code: ff 11 76 04 0f 0b eb fe 48 c7 c7 a4 00 60 80 e8 e8 b9
0d 00 48 89 c5 48 63 c3 48 69 d0 90 00 00 00 8b 82 48 01 60 80 85 c0 75 04
<0f> 0b eb fe 48 8b ba 40 01 60 80 ff c8 89 82 48 01 60 80 e8 d5
[46022.514083] RIP  [<ffffffff80359cad>] tty_ldisc_put+0x34/0x5e
[46022.514087]  RSP <ffff880007cc9e18>
[46022.514093] ---[ end trace 9982d726e244ec38 ]---

I also had the following in my guest config:

## IC - added to prevent problems after upgrade to Debian Lenny
## See:
http://maff.ailoo.net/2009/04/upgrade-from-debian-etch-xen-30-to-debian-lenny-xen-32-amd64/
extra = "console=hvc0 xencons=tty"


Regards,
Imran Chaudhry
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