You have been subscribed to a public bug:
---Problem Description---
Please backport console irq patch .
commit 00dab8187e182da41122f66c207707b192509df4
Author: Sam Mendoza-Jonas <s...@mendozajonas.com>
Date: Mon Jul 11 13:38:58 2016 +1000
tty/hvc: Use opal irqchip interface if available
Update the hvc driver to use the OPAL irqchip if made available by the
running firmware. If it is not present, the driver falls back to the
existing OPAL event number.
Signed-off-by: Samuel Mendoza-Jonas <s...@mendozajonas.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---uname output---
Linux tul217p1 4.4.0-98-generic #121-Ubuntu SMP Tue Oct 10 14:23:01 UTC 2017
ppc64le ppc64le ppc64le GNU/Linux
Machine Type = FSP based PowerNV system
Canonical,
We need this patch in 16.04 GA 4.4 kernel. This fix will avoid the
following error:
Oct 19 22:15:07 tul217p1 kernel: sched: RT throttling activated
Oct 19 22:15:49 tul217p1 kernel: INFO: rcu_sched self-detected stall on CPU
Oct 19 22:15:49 tul217p1 kernel: 21-...: (85 GPs behind)
idle=d29/140000000000002/0 softirq=26316/26316 fqs=4417
Oct 19 22:15:49 tul217p1 kernel: (t=5250 jiffies g=30019 c=30018
q=20591)
Oct 19 22:15:49 tul217p1 kernel: Call Trace:
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f110] [c0000000000fcbe0]
sched_show_task+0xe0/0x180 (unreliable)
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f180] [c00000000013fcf4]
rcu_dump_cpu_stacks+0xe4/0x150
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f1d0] [c000000000145424]
rcu_check_callbacks+0x6b4/0x9b0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f300] [c00000000014d288]
update_process_times+0x58/0xa0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f330] [c0000000001649b8]
tick_sched_handle.isra.6+0x48/0xe0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f370] [c000000000164ab4]
tick_sched_timer+0x64/0xd0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f3b0] [c00000000014dd54]
__hrtimer_run_queues+0x124/0x450
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f440] [c00000000014ed7c]
hrtimer_interrupt+0xec/0x2c0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f500] [c00000000001f5fc]
__timer_interrupt+0x8c/0x290
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f550] [c00000000001f9b0]
timer_interrupt+0xa0/0xe0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f580] [c0000000000099d8]
restore_check_irq_replay+0x54/0x70
Oct 19 22:15:49 tul217p1 kernel: --- interrupt: 901 at
arch_local_irq_restore+0x74/0x90
LR = arch_local_irq_restore+0x74/0x90
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f870] [7fffffffffffffff]
0x7fffffffffffffff (unreliable)
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f890] [c0000000000bf808]
__do_softirq+0xd8/0x3e0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f980] [c0000000000bfd88]
irq_exit+0xc8/0x100
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f9a0] [c00000000001f9b4]
timer_interrupt+0xa4/0xe0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0f9d0] [c0000000000099d8]
restore_check_irq_replay+0x54/0x70
Oct 19 22:15:49 tul217p1 kernel: --- interrupt: 901 at irq_work_queue+0x60/0xd0
LR = irq_work_queue+0xa4/0xd0
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0fcc0] [c0000007f4d0fd00]
0xc0000007f4d0fd00 (unreliable)
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0fcf0] [c000000000076a98]
opal_handle_events+0x108/0x130
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0fd40] [c000000000070fc8]
kopald+0x78/0x100
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0fd80] [c0000000000e7374]
kthread+0x124/0x150
Oct 19 22:15:49 tul217p1 kernel: [c0000007f4d0fe30] [c000000000009538]
ret_from_kernel_thread+0x5c/0xa4
Oct 19 22:15:54 tul217p1 kernel: NMI watchdog: BUG: soft lockup - CPU#21 stuck
for 23s! [kopald:494]
Oct 19 22:15:54 tul217p1 kernel: Modules linked in: ibmpowernv binfmt_misc
ipmi_powernv ipmi_msghandler leds_powernv powernv_rng
uio_pdrv_genirq uio vmx_crypto nfsd auth_rpcgss nfs_acl lockd ib_iser grace
rdma_cm iw_cm sunrpc ib_cm ib_sa ib_mad ib_core ib_
addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10
raid456 async_raid6_recov async_memcpy async_pq a
sync_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ipr cxl
Oct 19 22:15:54 tul217p1 kernel: CPU: 21 PID: 494 Comm: kopald Not tainted
4.4.0-98-generic #121-Ubuntu
Oct 19 22:15:54 tul217p1 kernel: task: c0000007f4cc3f30 ti: c0000007f4d0c000
task.ti: c0000007f4d0c000
Oct 19 22:15:54 tul217p1 kernel: NIP: c000000000010964 LR: c000000000010964
CTR: c00000000001f100
Oct 19 22:15:54 tul217p1 kernel: REGS: c0000007f4d0f5f0 TRAP: 0901 Not
tainted (4.4.0-98-generic)
Oct 19 22:15:54 tul217p1 kernel: MSR: 9000000000009033
<SF,HV,EE,ME,IR,DR,RI,LE> CR: 28000824 XER: 20000000
Oct 19 22:15:54 tul217p1 kernel: CFAR: c000000000009958 SOFTE: 1
GPR00: c0000000000bf808 c0000007f4d0f870
c000000001608300 0000000000000900
GPR04: c0000007fbd40400 0000000000000001
0000000000000018 0000000001f404db
GPR08: 0000000000000000 0000000000000000
c0000007f4d0c000 0000000000000005
GPR12: c00000000006e3c8 c00000000fb4c780
Oct 19 22:15:54 tul217p1 kernel: NIP [c000000000010964]
arch_local_irq_restore+0x74/0x90
Oct 19 22:15:54 tul217p1 kernel: LR [c000000000010964]
arch_local_irq_restore+0x74/0x90
Oct 19 22:15:54 tul217p1 kernel: Call Trace:
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0f870] [7fffffffffffffff]
0x7fffffffffffffff (unreliable)
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0f890] [c0000000000bf808]
__do_softirq+0xd8/0x3e0
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0f980] [c0000000000bfd88]
irq_exit+0xc8/0x100
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0f9a0] [c00000000001f9b4]
timer_interrupt+0xa4/0xe0
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0f9d0] [c0000000000099d8]
restore_check_irq_replay+0x54/0x70
Oct 19 22:15:54 tul217p1 kernel: --- interrupt: 901 at irq_work_queue+0x60/0xd0
LR = irq_work_queue+0xa4/0xd0
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0fcc0] [c0000007f4d0fd00]
0xc0000007f4d0fd00 (unreliable)
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0fcf0] [c000000000076a98]
opal_handle_events+0x108/0x130
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0fd40] [c000000000070fc8]
kopald+0x78/0x100
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0fd80] [c0000000000e7374]
kthread+0x124/0x150
Oct 19 22:15:54 tul217p1 kernel: [c0000007f4d0fe30] [c000000000009538]
ret_from_kernel_thread+0x5c/0xa4
Oct 19 22:15:54 tul217p1 kernel: Instruction dump:
Oct 19 22:15:54 tul217p1 kernel: 994d02ca 2fa30000 409e0024 e92d0020 61298000
7d210164 38210020 e8010010
Oct 19 22:15:54 tul217p1 kernel: 7c0803a6 4e800020 60420000 4bff186d <60000000>
4bffffe4 60420000 e92d0020
Oct 19 22:16:39 tul217p1 kernel: INFO: rcu_sched self-detected stall on CPU
Oct 19 22:16:39 tul217p1 kernel: 16-...: (301 GPs behind)
idle=5b5/140000000000002/0 softirq=2284/2284 fqs=4838
Oct 19 22:16:39 tul217p1 kernel: (t=5250 jiffies g=30159 c=30158
q=20605)
Oct 19 22:16:39 tul217p1 kernel: Call Trace:
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f150] [c0000000000fcbe0]
sched_show_task+0xe0/0x180 (unreliable)
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f1c0] [c00000000013fcf4]
rcu_dump_cpu_stacks+0xe4/0x150
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f210] [c000000000145424]
rcu_check_callbacks+0x6b4/0x9b0
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f340] [c00000000014d288]
update_process_times+0x58/0xa0
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f370] [c0000000001649b8]
tick_sched_handle.isra.6+0x48/0xe0
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f3b0] [c000000000164ab4]
tick_sched_timer+0x64/0xd0
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f3f0] [c00000000014dd54]
__hrtimer_run_queues+0x124/0x450
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f480] [c00000000014ed7c]
hrtimer_interrupt+0xec/0x2c0
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f540] [c00000000001f5fc]
__timer_interrupt+0x8c/0x290
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f590] [c00000000001f9b0]
timer_interrupt+0xa0/0xe0
Oct 19 22:16:39 tul217p1 kernel: [c0000007f4d0f5c0] [c0000000000099d8]
restore_check_irq_replay+0x54/0x70
Oct 19 22:16:39 tul217p1 kernel: --- interrupt: 901 at
arch_local_irq_restore+0x74/0x90
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
Status: New
** Tags: architecture-ppc64le bugnameltc-160719 severity-critical
targetmilestone-inin16044
--
[kernel] tty/hvc: Use opal irqchip interface if available
https://bugs.launchpad.net/bugs/1728098
You received this bug notification because you are a member of Kernel Packages,
which is subscribed to linux in Ubuntu.
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
