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Groups > linux.kernel > #1444419 > unrolled thread
| Started by | Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
|---|---|
| First post | 2016-07-15 18:20 +0200 |
| Last post | 2016-07-15 18:20 +0200 |
| Articles | 1 — 1 participant |
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Re: [lkp] [x86/hpet] a28b41ab00: RIP: 0010:[<ffffffff84884ef2>] [<ffffffff84884ef2>] __lock_acquire+0xce/0x649 Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2016-07-15 18:20 +0200
| From | Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
|---|---|
| Date | 2016-07-15 18:20 +0200 |
| Subject | Re: [lkp] [x86/hpet] a28b41ab00: RIP: 0010:[<ffffffff84884ef2>] [<ffffffff84884ef2>] __lock_acquire+0xce/0x649 |
| Message-ID | <rVe0h-D2-17@gated-at.bofh.it> |
* kernel test robot | 2016-07-14 10:53:20 [+0800]:
>FYI, we noticed the following commit:
>
>https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tmp.smp/hotplug
>commit a28b41ab00dc93b9b16deda9d9b4b26601444f6d ("x86/hpet: Convert to hotplug state machine")
This is gone in the meantime. I have head
ecd8081f6fb9032c41e5c38885f06836da6ab455 of WIP.hotplug. The commit in
question is in as 48d7f6c71578 ("x86/hpet: Convert to hotplug state
machine").
>in testcase: boot
>
>on test machine: 2 threads qemu-system-x86_64 -enable-kvm -cpu Nehalem with 320M memory
>
>caused below changes:
…
>[ 1.659021] Unpacking initramfs...
>[ 1.696928] workqueue: round-robin CPU selection forced, expect performance impact
>[ 1.702995] general protection fault: 0000 [#1]
>[ 1.704143] Modules linked in:
>[ 1.704950] CPU: 0 PID: 1 Comm: swapper Not tainted 4.7.0-rc7-00193-ga28b41a #1
>[ 1.709158] task: ffff880012052000 ti: ffff880012054000 task.ti: ffff880012054000
>[ 1.713142] RIP: 0010:[<ffffffff84884ef2>] [<ffffffff84884ef2>] __lock_acquire+0xce/0x649
The tree I mentioned boots, I get pass this point and am in
|[ 64.481048] rcu-torture: Reader Pipe: 2 0 0 0 0 0 0 0 0 0 0
so you might have tested a stale version of the patch queue.
Sebastian
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