WARNING: CPU: 1 PID: 22073 at kernel/locking/mutex-debug.c:41 debug_mutex_wake_waiter+0x7c/0x160

[Borislav Petkov]

Lemme add the usual suspects. I see also fuse in the splat, + Miklos.

This is rc7 + tip/master.

[ 8837.520731] ------------[ cut here ]------------
[ 8837.520739] WARNING: CPU: 1 PID: 22073 at kernel/locking/mutex-debug.c:41 debug_mutex_wake_waiter+0x7c/0x160
[ 8837.520740] DEBUG_LOCKS_WARN_ON(waiter->magic != waiter)
[ 8837.520741] Modules linked in:
[ 8837.520742]  fuse ntfs msdos ext2 msr cpufreq_powersave cpufreq_userspace cpufreq_conservative binfmt_misc uinput vfa
t fat loop dm_crypt dm_mod hid_generic usbhid hid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg
_temp_thermal coretemp kvm_intel arc4 iTCO_wdt iTCO_vendor_support kvm irqbypass crc32_pclmul crc32c_intel ghash_clmulni
_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd intel_cstate intel_rapl_perf pcspkr snd_hda_in
tel snd_hda_codec snd_hwdep snd_hda_core sdhci_pci snd_pcm sdhci mmc_core snd_timer sg i2c_i801 thinkpad_acpi i2c_smbus 
e1000e lpc_ich nvram mfd_core ehci_pci snd ehci_hcd soundcore ac led_class wmi battery xhci_pci xhci_hcd serio_raw therm
al [last unloaded: cfg80211]
[ 8837.520782] CPU: 1 PID: 22073 Comm: mount Not tainted 4.9.0-rc7+ #1
[ 8837.520783] Hardware name: LENOVO 2320CTO/2320CTO, BIOS G2ET86WW (2.06 ) 11/13/2012
[ 8837.520784] Call Trace:
[ 8837.520788]  dump_stack+0x67/0x92
[ 8837.520791]  __warn+0xcb/0xf0
[ 8837.520793]  warn_slowpath_fmt+0x4f/0x60
[ 8837.520796]  debug_mutex_wake_waiter+0x7c/0x160
[ 8837.520799]  __mutex_unlock_slowpath+0x12c/0x2c0
[ 8837.520804]  ? fuse_ctl_add_conn+0x180/0x180 [fuse]
[ 8837.520806]  mutex_unlock+0x12/0x20
[ 8837.520809]  fuse_ctl_fill_super+0xcb/0xe0 [fuse]
[ 8837.520811]  mount_single+0x8e/0xb0
[ 8837.520814]  fuse_ctl_mount+0x18/0x20 [fuse]
[ 8837.520816]  mount_fs+0x14/0xa0
[ 8837.520819]  vfs_kern_mount+0x6b/0x160
[ 8837.520821]  do_mount+0x195/0xd30
[ 8837.520823]  ? _copy_from_user+0x6e/0x80
[ 8837.520825]  ? memdup_user+0x53/0x80
[ 8837.520827]  SyS_mount+0x95/0xe0
[ 8837.520830]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 8837.520831] RIP: 0033:0x7f9fe23c6a8a
[ 8837.520832] RSP: 002b:00007ffeab7076c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
[ 8837.520834] RAX: ffffffffffffffda RBX: 0000000000000046 RCX: 00007f9fe23c6a8a
[ 8837.520835] RDX: 0000000002271240 RSI: 0000000002271280 RDI: 0000000002271260
[ 8837.520837] RBP: 0000000002271120 R08: 0000000000000000 R09: 0000000000000021
[ 8837.520838] R10: 00000000c0ed0000 R11: 0000000000000202 R12: 00007f9fe2aefe44
[ 8837.520839] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
[ 8837.520841] ---[ end trace c80c952cc368ee91 ]---


-- 
Regards/Gruss,
    Boris.

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