From: bugzilla-daemon@bugzilla.kernel.org
To: linuxppc-dev@lists.ozlabs.org
Subject: [Bug 195755] rcu_sched detected stalls on CPUs/tasks: (detected by 0, t=6302 jiffies, g=11405, c=11404, q=1880), ppc64, G5
Date: Thu, 24 Sep 2020 07:41:29 +0000 [thread overview]
Message-ID: <bug-195755-206035-oaOZpt2v1i@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-195755-206035@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=195755
Nigel Reed (nigel@nigelreed.net) changed:
What |Removed |Added
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CC| |nigel@nigelreed.net
--- Comment #29 from Nigel Reed (nigel@nigelreed.net) ---
I know this is old but I have been having some issues for a while, I was
finally able to get something useful:
[165716.089703] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[165716.095949] rcu: 1-...!: (0 ticks this GP) idle=354/0/0x0
softirq=2154363/2154363 fqs=0
[165716.104512] rcu: 3-...!: (0 ticks this GP) idle=29c/0/0x0
softirq=883832/883832 fqs=0
[165716.112873] rcu: 4-...!: (8 GPs behind) idle=ad8/0/0x0
softirq=2165586/2165586 fqs=0
[165716.121179] rcu: 9-...!: (9 GPs behind) idle=acc/0/0x0
softirq=1340600/1340600 fqs=0
[165716.129467] rcu: 11-...!: (2 GPs behind) idle=a18/0/0x0
softirq=4538536/4538537 fqs=0
[165716.137828] rcu: 12-...!: (0 ticks this GP) idle=870/0/0x0
softirq=2158040/2158040 fqs=0
[165775.697763] rcu: rcu_sched kthread starved for 29898 jiffies! g36134941
f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=3
[165775.709013] rcu: RCU grace-period kthread stack dump:
[165837.494623] watchdog: BUG: soft lockup - CPU#6 stuck for 23s!
[(resolved):52315]
[165865.494840] watchdog: BUG: soft lockup - CPU#6 stuck for 23s!
[(resolved):52315]
This happened just after freshclam ran but I don't know if it's related.
This is with a Ryzen 7 1800X CPU.
5.4.0-48-generic #52-Ubuntu
I thought I had sysrq configured but it seems not so I can't really provide any
more information, other than this is driving me crazy.
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next prev parent reply other threads:[~2020-09-24 7:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-195755-206035@https.bugzilla.kernel.org/>
2019-09-23 0:07 ` [Bug 195755] rcu_sched detected stalls on CPUs/tasks: (detected by 0, t=6302 jiffies, g=11405, c=11404, q=1880), ppc64, G5 bugzilla-daemon
2019-09-30 9:35 ` bugzilla-daemon
2019-09-30 10:50 ` bugzilla-daemon
2020-09-24 7:41 ` bugzilla-daemon [this message]
2020-10-15 18:31 ` bugzilla-daemon
2021-06-27 17:45 ` bugzilla-daemon
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