------- Comment From cha...@us.ibm.com 2016-10-11 16:14 EDT-------
*** Bug 147501 has been marked as a duplicate of this bug. ***
------- Comment From cha...@us.ibm.com 2016-10-11 16:16 EDT-------
(In reply to comment #22)
> Xenial commit ba54849ee832787206e76747cc15ac44f36457a4 ('ibmvnic: fix to use
> list_for_each_safe() when delete items') will be released in the next SRU
> cycle, likely Ubuntu-4.4.0-42.62
Hello,
We have a report of what looks like the same issue using this kernel.
Can you confirm that the fix is there? Thanks.
[ 5420.801963] ibmvnic 30000005: Virtual Adapter failed (rc=8)
[ 5420.802053] Unable to handle kernel paging request for data at address
0x000000f1
[ 5420.802081] Faulting instruction address: 0xd000000007a12434
[ 5420.802106] Oops: Kernel access of bad area, sig: 11 [#1]
[ 5420.802131] SMP NR_CPUS=2048 NUMA pSeries
[ 5420.802166] Modules linked in: iptable_filter ip_tables x_tables rpadlpar_io
rpaphp dccp_diag dccp tcp_diag udp_diag inet_diag unix_diag af_packet_diag
netlink_diag ipmi_msghandler pseries_rng rtc_generic binfmt_misc sunrpc autofs4
ibmvnic ibmvscsi ibmveth
[ 5420.802327] CPU: 1 PID: 143820 Comm: lsdevinfo Not tainted 4.4.0-42-generic
#62-Ubuntu
[ 5420.802347] task: c000000c62cb5f90 ti: c000000c7ffd8000 task.ti:
c000000c64590000
[ 5420.802364] NIP: d000000007a12434 LR: d000000007a12420 CTR: c0000000002b3370
[ 5420.802380] REGS: c000000c7ffdb9c0 TRAP: 0300 Not tainted
(4.4.0-42-generic)
[ 5420.802396] MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 48428224 XER:
20000010
[ 5420.802466] CFAR: c000000000008468 DAR: 00000000000000f1 DSISR: 40000000
SOFTE: 0
GPR00: d000000007a12420 c000000c7ffdbc40 d000000007a24240 0000000000000000
GPR04: f0000000031f80c0 c000000c7e0328e0 c000000c7e0328e0 00000000000005e8
GPR08: 0000000008000000 c000000c880005e8 0000000000000001 d000000007a196e8 9
GPR12: c0000000002b3370 c00000000fb40980 0000000000000003 0000000044000000
GPR16: 0000000010170dd0 0000000000000000 c00000000c381e18 c00000000c381db0
GPR20: 0000000000000000 c00000000c381d98 c00000000c381e08 c00000000c381900
GPR24: c00000000c381d88 c000000c56152400 c000000c56152448 0000000000000000
GPR28: 0000000000000100 0000000000000200 00000000000000f0 c00000000c381900
[ 5420.802846] NIP [d007000007a15 4ibmvnic_free_inflight+0x10480x330
[ibmvnic]
[ 5420.802885] LR [d000000007a12420] ibmvnic_free_inflight+0xf5:18330 [ibm1 1
[ 5420.802922] Call Trace:
[ 5420.802971] [c000000c7ffdbc40] [d000000007a12420]
ibmvnic_free_inflight+0xf0/0x330 [ibmvnic] (unreliable)
[ 5420.803041] [c000000c7ffdbce0] [d000000007a17188]
ibmvnic_handle_crq+0x3a8/0x2010 [ibmvnic]
[ 5420.803092] [c000000c7ffdbda0] [d000000007a18ea8]
ibmvnic_interrupt+0xb8/0x198 [ibmvnic]
[ 5420.803176] [c000000c7ffdbe10] [c000000000130a20]
handle_irq_event_percpu+0xa0/0x320
[ 5420.803207] [c00000087ffdbed0] [c000000000130d08] handle_irq_event+0x68/0xc0
[ 5420.803233] [c000000c7ffdbf00] [c000000000135fec]
handle_fasteoi_irq+0xec/0x2b0
[ 5420.803303] [c000000c7ffdbf30] [c00000000012fc04]
generic_handle_irq+0x54/0x80
[ 5420.803348] [c00000087ffdbf607 10000000011320] __do_irq+0x80/0x1d0
[ 5420.803384] [c00000077ffdbf902 10000000024860] call_do_irq+0x14/0x24
[ 5420.803409] [c000000864593710] [c030000000011508] do_IRQ+0x98/0x140
[ 5420.803439] [c0000017645937604 10000000002594]
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https://bugs.launchpad.net/bugs/1626222
Title:
STC860:alpine-pdq:alpdq5p03: kernel panic when adding vnic
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Committed
Status in linux source package in Yakkety:
Fix Released
Bug description:
Description: Ubuntu 16.04 LTS
Linux alpdq5p03 4.4.0-22-generic #40-Ubuntu SMP Thu May 12 22:03:35 UTC 2016
ppc64le ppc64le ppc64le GNU/Linux
Problem Description :
When I created a vNIC on alpdq5p03 using U78C7.001.KIC1906-P1-C12-T1
via alpdq5p08 and U78C7.001.KIC1906-P1-C12-T2 via alpdq5p09 as the
backing devices I got a kernel panic.
[ 129.977324] ibmvnic 30000004: Virtual Adapter failed (rc=8)
[ 129.977346] Unable to handle kernel paging request for data at address
0x000000f1
[ 129.977351] Faulting instruction address: 0xd000000010882434
[ 129.977355] Oops: Kernel access of bad area, sig: 11 [#1]
[ 129.977359] SMP NR_CPUS=2048 NUMA pSeries
[ 129.977364] Modules linked in: ibmvnic rpadlpar_io rpaphp nfsv3 nfs_acl
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dccp_diag dccp
tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag rtc_generic
pseries_rng binfmt_misc sunrpc autofs4 ibmvscsi ibmveth
[ 129.977392] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.0-22-generic
#40-Ubuntu
[ 129.977397] task: c0000000015566b0 ti: c000001ffffd8000 task.ti:
c0000000015b0000
[ 129.977401] NIP: d000000010882434 LR: d000000010882420 CTR:
c0000000002b25f0
[ 129.977406] REGS: c000001ffffdb9c0 TRAP: 0300 Not tainted
(4.4.0-22-generic)
[ 129.977410] MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 48048224
XER: 20000010
[ 129.977422] CFAR: c000000000008468 DAR: 00000000000000f1 DSISR: 40000000
SOFTE: 0
GPR00: d000000010882420 c000001ffffdbc40 d000000010894240 0000000000000000
GPR04: c000001ff4039ee0 0000000000000000 0000001ffdd80000 0000000000002082
GPR08: c000000000f9fda8 c000000000f9fda8 0000001ffdd80000 d0000000108896e8
GPR12: c0000000002b25f0 c00000000e7e0000 c0000000015eef18 c000000000f9d678
GPR16: 0000000000000001 0000000000000000 c000001fd3960e18 c000001fd3960db0
GPR20: c0000000015b0000 c000001fd3960d98 c000001fd3960e08 c000001fd3960900
GPR24: c000001fd3960d88 c000001fd39bf000 c000001fd39bf048 0000000000000000
GPR28: 0000000000000100 0000000000000200 00000000000000f0 c000001fd3960900
[ 129.977482] NIP [d000000010882434] ibmvnic_free_inflight+0x104/0x330
[ibmvnic]
[ 129.977488] LR [d000000010882420] ibmvnic_free_inflight+0xf0/0x330
[ibmvnic]
[ 129.977492] Call Trace:
[ 129.977496] [c000001ffffdbc40] [d000000010882420]
ibmvnic_free_inflight+0xf0/0x330 [ibmvnic] (unreliable)
[ 129.977503] [c000001ffffdbce0] [d000000010887188]
ibmvnic_handle_crq+0x3a8/0x2010 [ibmvnic]
[ 129.977509] [c000001ffffdbda0] [d000000010888ea8]
ibmvnic_interrupt+0xb8/0x198 [ibmvnic]
[ 129.977517] [c000001ffffdbe10] [c000000000130660]
handle_irq_event_percpu+0xa0/0x320
[ 129.977523] [c000001ffffdbed0] [c000000000130948]
handle_irq_event+0x68/0xc0
[ 129.977528] [c000001ffffdbf00] [c000000000135c2c]
handle_fasteoi_irq+0xec/0x2b0
[ 129.977534] [c000001ffffdbf30] [c00000000012f844]
generic_handle_irq+0x54/0x80
[ 129.977539] [c000001ffffdbf60] [c000000000011320] __do_irq+0x80/0x1d0
[ 129.977545] [c000001ffffdbf90] [c000000000024800] call_do_irq+0x14/0x24
[ 129.977550] [c0000000015b39a0] [c000000000011508] do_IRQ+0x98/0x140
[ 129.977555] [c0000000015b39f0] [c000000000002594]
hardware_interrupt_common+0x114/0x180
[ 129.977563] --- interrupt: 501 at plpar_hcall_norets+0x1c/0x28
[ 129.977563] LR = check_and_cede_processor+0x34/0x50
[ 129.977570] [c0000000015b3ce0] [c00000000090d9f0]
check_and_cede_processor+0x20/0x50 (unreliable)
[ 129.977576] [c0000000015b3d40] [c00000000090da94]
dedicated_cede_loop+0x74/0x190
[ 129.977582] [c0000000015b3d80] [c00000000090ac20]
cpuidle_enter_state+0x160/0x410
[ 129.977588] [c0000000015b3de0] [c000000000119a88] call_cpuidle+0x78/0xd0
[ 129.977593] [c0000000015b3e20] [c000000000119e5c]
cpu_startup_entry+0x37c/0x480
[ 129.977599] [c0000000015b3ee0] [c00000000000bdcc] rest_init+0xac/0xc0
[ 129.977605] [c0000000015b3f00] [c000000000ea3f5c] start_kernel+0x53c/0x558
[ 129.977610] [c0000000015b3f90] [c000000000008c6c]
start_here_common+0x20/0xa8
[ 129.977615] Instruction dump:
[ 129.977617] e95e0010 7fc3f378 f92a0008 f9490000 fb9e0010 fbbe0018 480072cd
e8410018
[ 129.977626] ebde0010 7fb6f040 3bdefff0 419e00f4 <893e0001> 2f890009
409effb4 7ea3ab78
[ 129.977636] ---[ end trace 79d415687d3074f2 ]---
[ 129.979495]
[ 131.979529] Kernel panic - not syncing: Fatal exception in interrupt
[ 131.985480] ---[ end Kernel panic - not syncing: Fatal exception in
interrupt
There was a fix for this particular bug in the ibmvnic_free_inflight
function pushed upstream.
Here is the commit (actually noticed by someone else independently
before I could push my own patch)
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=96183182ad05d1ce31b9048921c12bf4ad621eaf
This patch should fix this kernel panic.
A test kernel needs to be built and tested but mirroring to Launchpad
for a heads up to Canonical.
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