Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1350627 > unrolled thread
| Started by | Dave Airlie <airlied@gmail.com> |
|---|---|
| First post | 2016-03-04 22:50 +0100 |
| Last post | 2016-03-04 23:30 +0100 |
| Articles | 2 — 2 participants |
Back to article view | Back to linux.kernel
headsup: random memory corruption on 4.5-rc5 Dave Airlie <airlied@gmail.com> - 2016-03-04 22:50 +0100
Re: headsup: random memory corruption on 4.5-rc5 Linus Torvalds <torvalds@linux-foundation.org> - 2016-03-04 23:30 +0100
| From | Dave Airlie <airlied@gmail.com> |
|---|---|
| Date | 2016-03-04 22:50 +0100 |
| Subject | headsup: random memory corruption on 4.5-rc5 |
| Message-ID | <r95LJ-4GI-27@gated-at.bofh.it> |
So I've gotten two random memory corruptions on my haswell laptop over the past week, one caused my e1000 driver to crap out, and one in ext4 I've lost the e1000 trace it never made it to disk, I've been running a lot of VMs on this with the standard virtio hw, as well as usual desktop stuff and compiling things. I'm going to go to -rc6 and see how things go, but I've no obvious trigger at this point. I'll probably run slub_debug enabled as well. Dave. Mar 03 07:05:54 tyrion-bne-redhat-com kernel: ------------[ cut here ]------------ Mar 03 07:05:54 tyrion-bne-redhat-com kernel: kernel BUG at mm/slub.c:3625! Mar 03 07:05:55 tyrion-bne-redhat-com kernel: invalid opcode: 0000 [#1] SMP Mar 03 07:05:55 tyrion-bne-redhat-com kernel: Modules linked in: xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_n Mar 03 07:05:55 tyrion-bne-redhat-com kernel: snd_hda_codec_hdmi lpc_ich media mei_me rtsx_pci snd_hda_intel snd_hda_codec mfd_cor Mar 03 07:05:55 tyrion-bne-redhat-com kernel: CPU: 0 PID: 15831 Comm: Cache2 I/O Not tainted 4.5.0-rc5+ #31 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: Hardware name: LENOVO 20ARS25701/20ARS25701, BIOS GJET72WW (2.22 ) 02/21/2014 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: task: ffff88014050ad00 ti: ffff8802bc814000 task.ti: ffff8802bc814000 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: RIP: 0010:[<ffffffff8122dfbb>] [<ffffffff8122dfbb>] kfree+0x26b/0x270 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: RSP: 0018:ffff8802bc817cc0 EFLAGS: 00010246 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: RAX: ffffea00065a47e0 RBX: ffff880200000001 RCX: 000000000000000f Mar 03 07:05:55 tyrion-bne-redhat-com kernel: RDX: 0000000000000000 RSI: ffff880235335000 RDI: 0000000000000246 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: RBP: ffff8802bc817ce8 R08: ffff880235335000 R09: 0000000000000000 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff Mar 03 07:05:55 tyrion-bne-redhat-com kernel: R13: ffffffff8131cf69 R14: ffffea0008000000 R15: ffff88006c12c5b8 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: FS: 00007f9b9a30b700(0000) GS:ffff88031e200000(0000) knlGS:0000000000000000 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: CR2: 00007f9b9919f000 CR3: 00000002d1f7e000 CR4: 00000000001426f0 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: Stack: Mar 03 07:05:55 tyrion-bne-redhat-com kernel: ffff880200000001 00000000ffffffff ffff88006c12c3c8 0000000000000000 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: ffff88006c12c5b8 ffff8802bc817de0 ffffffff8131cf69 ffff8802bc817d08 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: ffffffff81116e2d ffff8802bc817d98 ffff88006c12c3c8 0000000000000000 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: Call Trace: Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff8131cf69>] ext4_ext_remove_space+0xba9/0x1410 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff81116e2d>] ? debug_lockdep_rcu_enabled+0x1d/0x20 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff8131f1a4>] ext4_ext_truncate+0xb4/0xe0 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff812f2849>] ext4_truncate+0x429/0x560 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff812f38df>] ext4_evict_inode+0x58f/0x640 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff812705a8>] evict+0xb8/0x180 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff81270920>] iput+0x240/0x2e0 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff8126344c>] do_unlinkat+0x1bc/0x280 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff81263e66>] SyS_unlink+0x16/0x20 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: [<ffffffff817e5032>] entry_SYSCALL_64_fastpath+0x12/0x76 Mar 03 07:05:55 tyrion-bne-redhat-com kernel: Code: ff ff 4d 89 f9 41 b8 01 00 00 00 48 89 d9 48 89 da 4c 89 f6 4c 89 ef e8 44 f4 f Mar 03 07:05:55 tyrion-bne-redhat-com kernel: RIP [<ffffffff8122dfbb>] kfree+0x26b/0x270
[toc] | [next] | [standalone]
| From | Linus Torvalds <torvalds@linux-foundation.org> |
|---|---|
| Date | 2016-03-04 23:30 +0100 |
| Message-ID | <r96op-5cc-3@gated-at.bofh.it> |
| In reply to | #1350627 |
On Fri, Mar 4, 2016 at 1:44 PM, Dave Airlie <airlied@gmail.com> wrote:
>
> ------------[ cut here ]------------
> kernel BUG at mm/slub.c:3625!
Yeah, not a lot to go on. That case should probably use
VM_BUG_ON_PAGE() to five a little more information, but on the whole
it's does look like just major memory corruption.
The call trace doesn't really strike me as a likely source of the bug.
Enabling slub debugging does seem to be the best idea.
Linus
[toc] | [prev] | [standalone]
Back to top | Article view | linux.kernel
csiph-web