Kernel Bug - Stack trace

[gentleguy]

Hi,

While booting the system, i am getting the below message. Sound is not working though.


[ 13.497823] input: PC Speaker as /devices/platform/pcspkr/input/input10
[ 13.508673] BUG: unable to handle kernel NULL pointer dereference at 0000000000000012
[ 13.509527] IP: [<ffffffffa00063b2>] sys_get_curr_temp+0x22/0x60 [x86_pkg_temp_thermal]
[ 13.510388] PGD 0
[ 13.511233] Oops: 0000 [#1] SMP
[ 13.512080] Modules linked in: x86_pkg_temp_thermal(+) snd_pcsp
[ 13.512941] CPU: 3 PID: 2080 Comm: systemd-udevd Not tainted 3.16.5-gentoo #2
[ 13.513797] Hardware name: Dell Inc. Inspiron N5110/0j2ww8, BIOS A10 03/22/2012
[ 13.514662] task: ffff880129f669c0 ti: ffff8800c35bc000 task.ti: ffff8800c35bc000
[ 13.515541] RIP: 0010:[<ffffffffa00063b2>] [<ffffffffa00063b2>] sys_get_curr_temp+0x22/0x60 [x86_pkg_temp_thermal]
[ 13.516459] RSP: 0018:ffff8800c35bfbd0 EFLAGS: 00010282
[ 13.517368] RAX: ffffffffa0006be0 RBX: 0000000000000000 RCX: ffff8800c35bfbd4
[ 13.518297] RDX: ffff8800c35bfbd0 RSI: 00000000000001b1 RDI: ffff8800c5316800
[ 13.519229] RBP: ffff8800c35bfbe8 R08: 0000000000000000 R09: 0000000000000000
[ 13.520162] R10: ffffffff813f6c60 R11: ffffea0004a91200 R12: ffff8800c35bfc30
[ 13.521243] R13: ffff8800c35bfc30 R14: ffff8800c5316800 R15: 0000000000000000
[ 13.522198] FS: 00007f3bae2097c0(0000) GS:ffff88012fb80000(0000) knlGS:0000000000000000
[ 13.523160] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 13.524116] CR2: 0000000000000012 CR3: 00000000c3537000 CR4: 00000000000407e0
[ 13.525070] Stack:
[ 13.526022] ffffffff819eac01 ffff8800c5316800 ffff8800c5316a80 ffff8800c35bfc18
[ 13.526999] ffffffff81713d65 ffff8800c5316818 0000000000000002 ffff8800c5316800
[ 13.527958] ffffffffa0006b80 ffff8800c35bfc48 ffffffff81714f75 ffff8800c35bfc48
[ 13.528915] Call Trace:
[ 13.529855] [<ffffffff819eac01>] ? mutex_lock+0x11/0x32
[ 13.530800] [<ffffffff81713d65>] thermal_zone_get_temp+0x55/0x80
[ 13.531746] [<ffffffff81714f75>] thermal_zone_device_update+0x25/0xb0
[ 13.532687] [<ffffffff81716483>] thermal_zone_device_register+0x7b3/0x8c0
[ 13.533630] [<ffffffffa0006909>] get_core_online+0x299/0x350 [x86_pkg_temp_thermal]
[ 13.534579] [<ffffffffa0009000>] ? 0xffffffffa0008fff
[ 13.535531] [<ffffffffa000906d>] pkg_temp_thermal_init+0x6d/0x157 [x86_pkg_temp_thermal]
[ 13.536499] [<ffffffff810002d4>] do_one_initcall+0x84/0x1b0
[ 13.537463] [<ffffffff8113c042>] ? __vunmap+0xb2/0x100
[ 13.538434] [<ffffffff810b51bd>] load_module+0x1b6d/0x21c0
[ 13.539402] [<ffffffff810b1e50>] ? show_initstate+0x50/0x50
[ 13.540367] [<ffffffff81157481>] ? vfs_read+0x101/0x190
[ 13.541322] [<ffffffff810b5956>] SyS_finit_module+0x86/0x90
[ 13.542272] [<ffffffff819ec3d2>] system_call_fastpath+0x16/0x1b
[ 13.543204] Code: 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 54 49 89 f4 48 8d 55 e8 48 8d 4d ec be b1 01 00 00 53 48 83 ec 08 48 8b 9f d8 02 00 00 <0f> b7 7b 12 e8 f5 50 41 e1 8b 55 e8 b8 ea ff ff ff 85 d2 79 19
[ 13.545642] RIP [<ffffffffa00063b2>] sys_get_curr_temp+0x22/0x60 [x86_pkg_temp_thermal]
[ 13.546698] RSP <ffff8800c35bfbd0>
[ 13.547735] CR2: 0000000000000012
[ 13.548772] ---[ end trace cea687e4a76b5464 ]---


Thanks

[eccerr0r]

This is kind of unexpected. It looks like systemd is looking at temperature (why?) and the temperature reading code in the kernel is puking (regardless if systemd-udev is or isn't).

Is this repeatable?

May need to file a kernel bug... and don't compile CONFIG_X86_PKG_TEMP_THERMAL into your kernel (or don't load the module) in the meantime.

Also make sure ACPI is enabled... though it may be unrelated or not..

[gentleguy]

[WGH]

I'm having the same issue with my ThinkPad T440.