On Sat, 25 Jul 2015, DIXLOR wrote: > # xfs_fsr; > ^C > > [ 3380.373641] WARNING: CPU: 6 PID: 3664 at kernel/locking/rtmutex.h:29 > 0xffffffff814d4ea2() > [ 3380.373641] rtmutex deadlock detected > [ 3380.373645] Modules linked in: cpufreq_userspace cpufreq_powersave > cpufreq_conservative nct6775 hwmon_vid xhci_hcd usbcore iTCO_wdt > crct10dif_pclmul iTCO_vendor_support shpchp crc32c_intel i2c_i801 lpc_ich > i2c_core usb_common mfd_core button processor dm_mod raid1 ahci libahci fan > thermal thermal_sys [last unloaded: xhci_pci] > [ 3380.373646] CPU: 6 PID: 3664 Comm: xfs_fsr Tainted: G D 3.18.19-rt15 > #3 > [ 3380.373647] Hardware name: MSI MS-7823/B85M-G43 (MS-7823), BIOS V3.14B3 > 06/23/2014 > [ 3380.373647] 0000000000000000 0000000000000009 ffffffff814d1350 > ffff8807ef65f538 > [ 3380.373648] ffffffff810498dd ffff8807cf289d10 ffff8807ef65f5c0 > 0000000000000000 > [ 3380.373648] 0000000000000000 0000000000000002 ffffffff81049955 > ffffffff81680648 > [ 3380.373649] Call Trace: > [ 3380.373649] [<ffffffff814d1350>] ? 0xffffffff814d1350 Can you please build your kernel with KALLSYSMS_ALL enabled, so we get a symbolic resolution of the call trace. You can also try and enable CONFIG_PROVE_LOCKING. That will give us even more detailed information about the problem at hand. Note, that CONFIG_PROVE_LOCKING slows down your kernel, so don't try to run on a production environment. Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html