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Date: Mon, 20 Feb 2017 05:06:59 +0800 From: kernel test robot <xiaolong.ye@...el.com> To: Marc Zyngier <marc.zyngier@....com> Cc: Thomas Gleixner <tglx@...utronix.de>, Tomasz Nowicki <tn@...ihalf.com>, Christoffer Dall <christoffer.dall@...aro.org>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>, "H. Peter Anvin" <hpa@...or.com>, tipbuild@...or.com, lkp@...org Subject: [hrtimer] 336a9cde10: WARNING:at_kernel/time/hrtimer.c:#hrtimer_init FYI, we noticed the following commit: commit: 336a9cde10d641e70bac67d90ae91b3190c3edca ("hrtimer: Catch invalid clockids again") https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git timers/core in testcase: boot on test machine: qemu-system-x86_64 -enable-kvm -cpu host -smp 2 -m 4G caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +------------------------------------------------+------------+------------+ | | dba9a0babd | 336a9cde10 | +------------------------------------------------+------------+------------+ | boot_successes | 4 | 0 | | boot_failures | 1 | 12 | | invoked_oom-killer:gfp_mask=0x | 1 | | | Mem-Info | 1 | | | WARNING:at_kernel/time/hrtimer.c:#hrtimer_init | 0 | 12 | +------------------------------------------------+------------+------------+ [ 19.886448] WARNING: CPU: 0 PID: 1 at kernel/time/hrtimer.c:1090 hrtimer_init+0x11f/0x199 [ 19.889938] Invalid clockid 4. Using MONOTONIC [ 19.891512] Modules linked in: [ 19.892913] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.10.0-rc3-00262-g336a9cd #19 [ 19.895739] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 19.899404] Call Trace: [ 19.900516] dump_stack+0x82/0xb8 [ 19.901298] __warn+0xc2/0xdd [ 19.902081] warn_slowpath_fmt+0x4b/0x53 [ 19.902948] ? lock_is_held_type+0x4b/0x54 [ 19.903844] hrtimer_init+0x11f/0x199 [ 19.904737] ? mac80211_hwsim_get_tsf+0x1d/0x1d [ 19.905698] tasklet_hrtimer_init+0x1b/0x4f [ 19.906675] mac80211_hwsim_new_radio+0x7fe/0x916 [ 19.907659] ? set_debug_rodata+0x12/0x12 [ 19.908607] init_mac80211_hwsim+0x138/0x29f [ 19.909519] ? rndis_wlan_driver_init+0x1b/0x1b [ 19.910557] do_one_initcall+0x90/0x142 [ 19.911416] ? do_one_initcall+0x136/0x142 [ 19.912380] ? set_debug_rodata+0x12/0x12 [ 19.913248] kernel_init_freeable+0x1cb/0x258 [ 19.914246] ? rest_init+0x13b/0x13b [ 19.915066] kernel_init+0xe/0xf5 [ 19.916056] ret_from_fork+0x2a/0x40 [ 19.917378] ---[ end trace 55127f051d2c3115 ]--- To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Kernel Test Robot View attachment "config-4.10.0-rc3-00262-g336a9cd" of type "text/plain" (156737 bytes) View attachment "job-script" of type "text/plain" (4151 bytes) Download attachment "dmesg.xz" of type "application/octet-stream" (27848 bytes)
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