Re: [hrtimer] 336a9cde10 WARNING: CPU: 1 PID: 1 at kernel/time/hrtimer.c:1090 hrtimer_init

From	Ye Xiaolong <xiaolong.ye@intel.com>
Newsgroups	linux.kernel
Subject	Re: [hrtimer] 336a9cde10 WARNING: CPU: 1 PID: 1 at kernel/time/hrtimer.c:1090 hrtimer_init
Date	2017-02-21 03:30 +0100
Message-ID	<td8nf-4xt-1@gated-at.bofh.it> (permalink)
References	<td6Ya-3xs-7@gated-at.bofh.it> <td83T-4q0-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi, fengguang
On 02/20, Thomas Gleixner wrote:
>On Tue, 21 Feb 2017, Fengguang Wu wrote:
>
>> Hi Marc,
>> 
>> FYI here is another bisect result. The attached reproduce-* script can
>> be used to reproduce the bug.
>
>Again. This is a problem in the calling code The WARN_ON merily shows the
>wreckage in the caller. Marc sent you a patch already...

I'm verifying the fix patch.

Thanks,
Xiaolong
>
>> [   11.409712]  hrtimer_init+0x11f/0x199
>> [   11.410666]  ? mac80211_hwsim_get_tsf+0x1d/0x1d
>> [   11.411766]  tasklet_hrtimer_init+0x1b/0x4f
>> [   11.412802]  mac80211_hwsim_new_radio+0x7fe/0x916
>> [   11.413935]  ? set_debug_rodata+0x12/0x12
>> [   11.414904]  init_mac80211_hwsim+0x138/0x29f
>> [   11.415822]  ? rndis_wlan_driver_init+0x1b/0x1b
>> [   11.416775]  do_one_initcall+0x90/0x142
>> [   11.417632]  ? set_debug_rodata+0x12/0x12
>> [   11.418511]  kernel_init_freeable+0x1cb/0x258
>> [   11.419433]  ? rest_init+0x13b/0x13b
>> [   11.420233]  kernel_init+0xe/0xf5
>> [   11.421006]  ret_from_fork+0x2a/0x40
>> [   11.421838] ---[ end trace 9c23eceab0d16aa5 ]---
>> [   11.423540] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'

Thread

Re: [hrtimer] 336a9cde10 WARNING: CPU: 1 PID: 1 at kernel/time/hrtimer.c:1090  hrtimer_init Thomas Gleixner <tglx@linutronix.de> - 2017-02-21 03:10 +0100
  Re: [hrtimer] 336a9cde10 WARNING: CPU: 1 PID: 1 at  kernel/time/hrtimer.c:1090 hrtimer_init Ye Xiaolong <xiaolong.ye@intel.com> - 2017-02-21 03:30 +0100
    Re: [LKP] [hrtimer] 336a9cde10 WARNING: CPU: 1 PID: 1 at  kernel/time/hrtimer.c:1090 hrtimer_init Ye Xiaolong <xiaolong.ye@intel.com> - 2017-02-21 06:40 +0100
  Re: [hrtimer] 336a9cde10 WARNING: CPU: 1 PID: 1 at  kernel/time/hrtimer.c:1090 hrtimer_init Fengguang Wu <fengguang.wu@intel.com> - 2017-02-21 03:30 +0100

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