Public bug reported:
Got this after running rtorrent for a while, not very critical though, as
everything seems to be working fine none the less.
[1384908.945401] Unable to handle kernel NULL pointer dereference at
0000000000000d90 RIP:
[1384908.945415] [<ffffffff8021b037>] page_waitqueue+0x47/0x80
[1384908.945459] PGD 26ed6067 PUD 14f9c067 PMD 0
[1384908.945477] Oops: 0000 [1] SMP
[1384908.945493] CPU 0
[1384908.945507] Modules linked in: i2c_dev af_packet iptable_filter ip_tables
x_tables asus_acpi container battery backlight sbs i2c_ec button video dock ac
parport_pc lp parport i2c_nforce2 psmouse pcspkr i2c_core serio_raw k8temp
shpchp pci_hotplug ipv6 evdev ext3 jbd mbcache sg sd_mod generic amd74xx
ehci_hcd ohci_hcd usbcore sata_nv forcedeth ata_generic libata scsi_mod thermal
processor fan fbcon tileblit font bitblit softcursor vesafb cfbcopyarea
cfbimgblt cfbfillrect capability commoncap
[1384908.945666] Pid: 10740, comm: rtorrent Not tainted 2.6.20-8-generic #2
[1384908.945685] RIP: 0010:[<ffffffff8021b037>] [<ffffffff8021b037>]
page_waitqueue+0x47/0x80
[1384908.945716] RSP: 0018:ffff8100008138a0 EFLAGS: 00010a17
[1384908.945734] RAX: 5afe8b306cf3f420 RBX: ffff81003d73f420 RCX:
0000000000000040
[1384908.945763] RDX: 0000000000000a80 RSI: ffff81003d73f420 RDI:
0800000000000000
[1384908.945790] RBP: ffff81001b0b9b48 R08: 0000000000000000 R09:
0000000000000000
[1384908.945819] R10: b9d8f287dc30beec R11: 72d8e828bdfcc7e4 R12:
ffff810027176bc0
[1384908.945847] R13: 0000000000000614 R14: ffff810027176c28 R15:
0000000000000000
[1384908.945876] FS: 00002b6f5cdfd020(0000) GS:ffffffff80542000(0000)
knlGS:0000000000000000
[1384908.945905] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[1384908.945923] CR2: 0000000000000d90 CR3: 0000000023fc3000 CR4:
00000000000006e0
[1384908.945951] Process rtorrent (pid: 10740, threadinfo ffff810000812000,
task ffff81003c9ce7a0)
[1384908.945980] Stack: ffffffff80242a98 ffff81003d73f420 0000000000000000
0000000000000000
[1384908.946012] ffff81003c9ce7a0 ffffffff802a3050 ffff8100008138d0
ffff8100008138d0
[1384908.946043] ffff81002328f160 ffff81003d73f420 ffffffff802132f6
ffff8100008139bc
[1384908.946064] Call Trace:
[1384908.946090] [<ffffffff80242a98>] __lock_page+0x48/0x70
[1384908.946111] [<ffffffff802a3050>] wake_bit_function+0x0/0x30
[1384908.946132] [<ffffffff802132f6>] filemap_nopage+0x236/0x350
[1384908.946155] [<ffffffff802086f0>] __handle_mm_fault+0x210/0xab0
[1384908.946178] [<ffffffff80274170>] nommu_map_single+0x40/0x50
[1384908.946203] [<ffffffff88091f1a>] :forcedeth:nv_start_xmit+0x1aa/0x590
[1384908.946227] [<ffffffff8026a057>] do_page_fault+0x477/0x890
[1384908.946250] [<ffffffff803da97c>] __qdisc_run+0x6c/0x200
[1384908.946272] [<ffffffff80230dd7>] dev_queue_xmit+0x247/0x270
[1384908.946295] [<ffffffff8026806d>] error_exit+0x0/0x84
[1384908.946319] [<ffffffff8026527b>] csum_partial_copy_generic+0x5b/0x170
[1384908.946345] [<ffffffff804252be>] csum_partial_copy_from_user+0xbe/0x101
[1384908.946367] [<ffffffff8022744c>] tcp_sendmsg+0x34c/0xaf0
[1384908.946394] [<ffffffff802573e4>] sock_sendmsg+0x104/0x140
[1384908.946418] [<ffffffff802a3020>] autoremove_wake_function+0x0/0x30
[1384908.946448] [<ffffffff802406d9>] lock_timer_base+0x29/0x60
[1384908.946471] [<ffffffff803c0682>] sys_sendto+0x142/0x1a0
[1384908.946491] [<ffffffff8025f6cc>] del_timer_sync+0xc/0x20
[1384908.946510] [<ffffffff80266602>] schedule_timeout+0xa2/0xd0
[1384908.946529] [<ffffffff80267532>] __down_read+0x12/0xa3
[1384908.946548] [<ffffffff80298b00>] process_timeout+0x0/0x10
[1384908.946568] [<ffffffff80222ce1>] __up_read+0x21/0xb0
[1384908.946588] [<ffffffff802f258f>] sys_epoll_wait+0x48f/0x500
[1384908.946611] [<ffffffff80270a34>] do_gettimeofday+0x44/0x90
[1384908.946634] [<ffffffff8026111e>] system_call+0x7e/0x83
[1384908.946656]
[1384908.946668]
[1384908.946669] Code: 2b 8a 10 03 00 00 48 01 f8 48 c1 e7 03 48 29 f8 48 c1 e7
04
[1384908.946726] RIP [<ffffffff8021b037>] page_waitqueue+0x47/0x80
[1384908.946746] RSP <ffff8100008138a0>
[1384908.946761] CR2: 0000000000000d90
[1384908.946947] <3>swap_free: Unused swap offset entry 00000e8e
lspci:
[EMAIL PROTECTED]:~$ lspci
00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2)
00:00.1 RAM memory: nVidia Corporation C51 Memory Controller 0 (rev a2)
00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2)
00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2)
00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2)
00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2)
00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2)
00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2)
00:02.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1)
00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1)
00:04.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1)
00:05.0 VGA compatible controller: nVidia Corporation C51PV [GeForce 6150] (rev
a2)
00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2)
00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3)
00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3)
00:0a.2 RAM memory: nVidia Corporation MCP51 Memory Controller 0 (rev a3)
00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3)
00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3)
00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev a1)
00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1)
00:0f.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1)
00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2)
00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address
Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM
Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Miscellaneous Control
cat /proc/cpuinfo:
[EMAIL PROTECTED]:~$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 75
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping : 2
cpu MHz : 2004.239
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm
3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy
bogomips : 4012.04
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 75
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping : 2
cpu MHz : 2004.239
cache size : 512 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm
3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy
bogomips : 4013.57
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc
uname -a:
[EMAIL PROTECTED]:~$ uname -a
Linux groove 2.6.20-8-generic #2 SMP Tue Feb 13 01:14:41 UTC 2007 x86_64
GNU/Linux
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
** Tags added: 2.6.20-8 amd64 feisty kernel rtorrent
--
Kernel NULL pointer dereference when running rtorrent
https://launchpad.net/bugs/89347
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