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

From: Thomas Gleixner
Date: Mon Feb 20 2017 - 21:09:24 EST


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...

> [ 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'