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Subject: [Bug 193367] New: [panic] sleeping thread
Date: Sat, 06 Sep 2014 08:14:35 +0000
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X-Bugzilla-Product: Base System
X-Bugzilla-Component: threads
X-Bugzilla-Version: 9.1-RELEASE
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X-Bugzilla-Who: sasamotikomi@gmail.com
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193367

            Bug ID: 193367
           Summary: [panic] sleeping thread
           Product: Base System
           Version: 9.1-RELEASE
          Hardware: i386
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: Normal
         Component: threads
          Assignee: freebsd-threads@FreeBSD.org
          Reporter: sasamotikomi@gmail.com
                CC: stable@FreeBSD.org

panic: sleeping thread
Sleeping thread (tid 102916, pid 16913) owns a non-sleepable lock
KDB: stack backtrace of thread 102916:
#0 0xc0ac8ca9 at mi_switch+0x139
#1 0xc0afddee at sleepq_switch+0xce
#2 0xc0afe95e at sleepq_timedwait+0x3e
#3 0xc0ac92a2 at _sleep+0x2a2
#4 0xc0d1c306 at swap_pager_getpages+0x3e6
#5 0xc0d28291 at vm_fault_hold+0x1031
#6 0xc0d2993b at vm_fault+0x8b
#7 0xc0e2525f at trap_pfault+0x1df
#8 0xc0e260ea at trap+0x44a
#9 0xc0e0f6cc at calltrap+0x6
#10 0xc9fb0b5a at drm_ioctl+0x2ca
#11 0xc09a41aa at devfs_ioctl_f+0x10a
#12 0xc0b05140 at kern_ioctl+0x2a0
#13 0xc0b052b4 at sys_ioctl+0x134
#14 0xc0e257fa at syscall+0x34a
#15 0xc0e0f731 at Xint0x80_syscall+0x21
panic: sleeping thread
cpuid = 0
KDB: stack backtrace:
#0 0xc0af3b1f at kdb_backtrace+0x4f
#1 0xc0ac054f at panic+0x16f
#2 0xc0b01b46 at propagate_priority+0x106
#3 0xc0b02958 at turnstile_wait+0x2c8
#4 0xc0aae71c at _mtx_lock_sleep+0x1ec
#5 0xc0aaeaec at _mtx_lock_flags+0x4c
#6 0xc9fb3f8d at drm_lock+0xad
#7 0xc9fb0bfb at drm_ioctl+0x36b
#8 0xc09a41aa at devfs_ioctl_f+0x10a
#9 0xc0b05140 at kern_ioctl+0x2a0
#10 0xc0b052b4 at sys_ioctl+0x134
#11 0xc0e257fa at syscall+0x34a
#12 0xc0e0f731 at Xint0x80_syscall+0x21

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