Re: MCE Bug?

["Luck, Tony" <tony.luck@intel.com>]

On Wed, Jun 17, 2015 at 11:41:56AM +0200, Borislav Petkov wrote:
> And I was waiting in line to get a chance to do some injection on our
> EINJ box here too. But it seems you have the required setup already so
> if you want to give those changes a run, I've uploaded them here:
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git#tip-ras
> 
> It'll be much appreciated.

and the answer is <drum roll> ....



no. :-(

Here's the console log:


[    0.190921] Initializing cgroup subsys blkio
[    0.195701] Initializing cgroup subsys memory
[    0.200621] Initializing cgroup subsys devices
[    0.205591] Initializing cgroup subsys freezer
[    0.210563] Initializing cgroup subsys net_cls
[    0.215535] Initializing cgroup subsys perf_event
[    0.220837] Initializing cgroup subsys hugetlb
[    0.225884] CPU: Physical Processor ID: 0
[    0.230368] CPU: Processor Core ID: 0
[    0.235373] mce: CPU supports 22 MCE banks
[    0.239995] CPU0: Thermal monitoring enabled (TM1)
[    0.245388] process: using mwait in idle threads
[    0.250554] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024
[    0.257367] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4
[    0.265023] Freeing SMP alternatives memory: 28K (ffffffff81cd9000 - ffffffff81ce0000)
[    0.284681] ftrace: allocating 25590 entries in 100 pages
[    0.301981] x2apic: IRQ remapping doesn't support X2APIC mode
[    0.308540] Switched APIC routing to physical flat.
[    0.314866] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.331616] smpboot: CPU0: Intel(R) Xeon(R) CPU E7-8890 v3 @ 2.50GHz (fam: 06, model: 3f, stepping: 04)
[    0.342176] Performance Events: PEBS fmt2+, 16-deep LBR, Haswell events, full-width counters, Intel PMU driver.
[    0.353531] ... version:                3
[    0.358009] ... bit width:              48
[    0.362576] ... generic registers:      4
[    0.367056] ... value mask:             0000ffffffffffff
[    0.372992] ... max period:             0000ffffffffffff
[    0.378926] ... fixed-purpose events:   3
[    0.383404] ... event mask:             000000070000000f
[    0.392352] x86: Booting SMP configuration:
[    0.397027] .... node  #0, CPUs:          #1
[    0.423364] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.
[    0.432694]    #2   #3   #4   #5   #6   #7   #8   #9  #10  #11  #12  #13  #14  #15  #16  #17
[    0.706722] .... node  #1, CPUs:    #18  #19  #20  #21  #22  #23  #24  #25  #26  #27  #28  #29  #30  #31  #32  #33  #34  #35
[    1.094522] .... node  #2, CPUs:    #36
[    1.192483] mce: [Hardware Error]: Machine check events logged
[    1.209188]   #37
[    1.209279] BUG: unable to handle kernel 
[    1.215830]   #38
[    1.217982] NULL pointer dereference at 0000000000000008
[    1.223925] IP: [<ffffffff810980a1>] process_one_work+0x31/0x420
[    1.225696]   #39PGD 0 
[    1.233428] Oops: 0000 [#1] SMP 
[    1.237059] Modules linked in:
[    1.240486] CPU: 36 PID: 263 Comm: kworker/36:0 Not tainted 4.1.0-rc8 #1
[    1.247969]   #40
[    1.247969] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRHSXSD1.86B.0065.R01.1505011640 05/01/2015
[    1.261708]   #41
[    1.261711] task: ffff88181c284470 ti: ffff88181bd94000 task.ti: ffff88181bd94000
[    1.272235] RIP: 0010:[<ffffffff810980a1>] [    1.275305]   #42
 [<ffffffff810980a1>] process_one_work+0x31/0x420
[    1.283854] RSP: 0000:ffff88181bd97e08  EFLAGS: 00010046
[    1.289799] RAX: 0000000fffffffe0 RBX: ffffffff81d0fa20 RCX: 0000000000000000
[    1.297780]   #43
[    1.297780] RDX: 0000000fffffff00 RSI: ffffffff81d0fa20 RDI: ffff88181c2660c0
[    1.307914] RBP: ffff88181bd97e48 R08: ffff88181f416ec0 R09: ffff88181c284470
[    1.315892]   #44
[    1.315892] R10: 0000000000000002 R11: ffffffff8109e5ac R12: ffff88181c2660c0
[    1.326023]   #45
[    1.326024] R13: ffff88181f416ec0 R14: 0000000000000000 R15: ffff88181c2660f0
[    1.336151] FS:  0000000000000000(0000) GS:ffff88181f400000(0000) knlGS:0000000000000000
[    1.345207]   #46
[    1.345209] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.353782] CR2: 00000000000000b8 CR3: 00000000019ca000 CR4: 00000000001406e0
[    1.361764]   #47
[    1.361765] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    1.371900] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    1.379879]   #48
[    1.379879] Stack:
[    1.384277]  0000000000000282 00000000bce8578f ffff88181f416f50 ffff88181c2660c0[    1.390883]   #49

[    1.394749]  ffff88181f416ed8 ffff88181f416ec0 ffff88181c284470 ffff88181c2660f0
[    1.403058]  ffff88181bd97eb8 ffffffff81098982[    1.407588]   #50
 ffff88181f4171a0 ffff88181f416ed8
[    1.413538] Call Trace:
[    1.416274]  [<ffffffff81098982>] worker_thread+0x112/0x520
[    1.422518]  [<ffffffff81098870>] ? rescuer_thread+0x3e0/0x3e0
[    1.429048]   #51
[    1.429048]  [<ffffffff8109e6d8>] kthread+0xd8/0xf0
[    1.436650]  [<ffffffff8109e600>] ? kthread_create_on_node+0x1b0/0x1b0
[    1.443964]   #52
[    1.443966]  [<ffffffff816a0322>] ret_from_fork+0x42/0x70
[    1.452164]  [<ffffffff8109e600>] ? kthread_create_on_node+0x1b0/0x1b0
[    1.459469]   #53
[    1.459471] Code: 48 89 e5 41 57 41 56 45 31 f6 41 55 41 54 49 89 fc 53 48 89 f3 48 83 ec 18 48 8b 06 4c 8b 6f 48 48 89 [    1.473959] 
[    1.473959] .... node  #3, CPUs:    #54
c2 30 d2 a8 04 4c 0f 45 f2 <49> 8b 46 08 44 8b b8 00 01 00 00 41 c1 ef 05 44 89 f8 83 e0 01 
[    1.489433] RIP  [<ffffffff810980a1>] process_one_work+0x31/0x420
[    1.496261]  RSP <ffff88181bd97e08>
[    1.500160] CR2: 0000000000000008
[    1.503872] ---[ end trace 8229a011b97532a0 ]---
[    1.509027] Kernel panic - not syncing: Fatal exception
[    1.514890] ---[ end Kernel panic - not syncing: Fatal exception