(follow up to a report from last week - bisecting took a while as I could only do 1 or 2 tests an evening)
My Dell Latitude E6530 crashes with a specific kernel lockup almost
exactly 4 hours after boot if there isn't a cable connected to the
Ethernet port:
[14508.846327] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 0
[14468.229720] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 0
[14463.254791] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 0
[14491.134413] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu
1
[14463.396593] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu
2
[14490.390223] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu
1
[14494.680591] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 0
[14513.365378] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu
1
[14482.271716] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu
3
[14479.906820] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 0
As far as I can tell, the timestamp jitter is just how long it takes me to
enter the cryptLUKS passphrase for the hard drive at boot...
lspci tells me:
lspci -vvv -s "00:19.0"
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
Connection (rev 04)
DeviceName: Onboard LAN
Subsystem: Dell Device 0535
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 28
Region 0: Memory at f7700000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at f7739000 (32-bit, non-prefetchable) [size=4K]
Region 2: I/O ports at f040 [size=32]
Capabilities: [c8] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee00318 Data: 0000
Capabilities: [e0] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: e1000e
The traceback always looks like:
[14479.906820] Kernel panic - not syncing: Watchdog detected hard LOCKUP on cpu 0
[14479.906908] Call Trace:
[14479.906914] <NMI> [<ffffffffba94db16>] dump_stack+0x50/0xa8
[14479.906930] [<ffffffffba948bb9>] panic+0xcd/0x1e4
[14479.906940] [<ffffffffba166a60>] ? perf_event_task_disable+0xc0/0xc0
[14479.906952] [<ffffffffba125d8b>] watchdog_overflow_callback+0x9b/0xa0
[14479.906959] [<ffffffffba16a684>] __perf_event_overflow+0xc4/0x1f0
[14479.906968] [<ffffffffba16b3a4>] perf_event_overflow+0x14/0x20
[14479.906976] [<ffffffffba022271>] intel_pmu_handle_irq+0x1e1/0x430
[14479.906990] [<ffffffffba01a0f6>] perf_event_nmi_handler+0x26/0x40
[14479.906999] [<ffffffffba0085b3>] nmi_handle+0x103/0x340
[14479.907005] [<ffffffffba0084b5>] ? nmi_handle+0x5/0x340
[14479.907017] [<ffffffffba008a53>] default_do_nmi+0xc3/0x120
[14479.907032] [<ffffffffba008b98>] do_nmi+0xe8/0x130
[14479.907044] [<ffffffffba95c9a8>] end_repeat_nmi+0x1e/0x2e
[14479.907055] [<ffffffffba529886>] ? e1000e_cyclecounter_read+0x16/0xc0
[14479.907061] [<ffffffffba529886>] ? e1000e_cyclecounter_read+0x16/0xc0
[14479.907069] [<ffffffffba529886>] ? e1000e_cyclecounter_read+0x16/0xc0
[14479.907075] <<EOE>> [<ffffffffba0e9529>] timecounter_read+0x19/0x60
[14479.907088] [<ffffffffba53687e>] e1000e_phc_gettime+0x2e/0x60
[14479.907098] [<ffffffffba536a31>] e1000e_systim_overflow_work+0x31/0x70
[14479.907105] [<ffffffffba07ad19>] process_one_work+0x3c9/0x980
[14479.907115] [<ffffffffba07ac62>] ? process_one_work+0x312/0x980
[14479.907125] [<ffffffffba07b348>] ? worker_thread+0x78/0x760
[14479.907134] [<ffffffffba07b59c>] worker_thread+0x2cc/0x760
[14479.907144] [<ffffffffba07b2d0>] ? process_one_work+0x980/0x980
[14479.907154] [<ffffffffba082a5e>] kthread+0xfe/0x120
[14479.907163] [<ffffffffba08ca50>] ? finish_task_switch+0x50/0x1c0
[14479.907173] [<ffffffffba082960>] ? kthread_create_on_node+0x270/0x270
[14479.907179] [<ffffffffba95ae4f>] ret_from_fork+0x3f/0x70
[14479.907188] [<ffffffffba082960>] ? kthread_create_on_node+0x270/0x270
[14479.907243] Kernel Offset: 0x39000000 from 0xffffffff81000000 (relocation
range: 0xffffffff80000000-0xffffffffbfffffff)
Bisection tells me it's this commit:
commit 83129b37ef35bb6a7f01c060129736a8db5d31c4
Author: Yanir Lubetkin <yanirx.lubet...@intel.com>
Date: Tue Jun 2 17:05:45 2015 +0300
e1000e: fix systim issues
Two issues involving systim were reported.
1. Clock is not running in the correct frequency
2. In some situations, systim values were not incremented linearly
This patch fixes the hardware clock configuration and the spurious
non-linear increment.
pgpw96_oDSKGZ.pgp
Description: PGP signature
