https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236917
Bug ID: 236917
Summary: emulators/virtualbox-ose: Sleeping thread owns a
non-sleepable lock kernel panic
Product: Ports & Packages
Version: Latest
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: Individual Port(s)
Assignee: v...@freebsd.org
Reporter: der...@lifeofadishwasher.com
Assignee: v...@freebsd.org
Flags: maintainer-feedback?(v...@freebsd.org)
FreeBSD 12.0-RELEASE-p3 amd64 host running multiple guests (FreeBSD, RHEL,
Fedora, Windows) I'll get the follow kernel panic (see below). It seems to be
popular during startups of the hosts however I've seen it on long running
states as well. I've had this kernel panic this host 4 time in the past month.
I don't have any reproducers.
The vbox home directory and data is hosted on a ZFS mirror.
kernel: Sleeping thread (tid 100909, pid 1118) owns a non-sleepable lock
kernel: KDB: stack backtrace of thread 100909:
kernel: #0 0xffffffff80ba6de1 at mi_switch+0xe1
kernel: #1 0xffffffff80bf5c45 at sleepq_catch_signals+0x405
kernel: #2 0xffffffff80bf5f24 at sleepq_timedwait_sig+0x14
kernel: #3 0xffffffff82669ba6 at rtR0SemEventMultiBsdWait+0x2a6
kernel: #4 0xffffffff82a9784a at __stop_set_sysinit_set+0x9e02
kernel: #5 0xffffffff8263fa61 at supdrvIOCtlInnerUnrestricted+0x1781
kernel: #6 0xffffffff8264d3fd at VBoxDrvFreeBSDIOCtl+0xed
kernel: #7 0xffffffff80a51acd at devfs_ioctl+0xad
kernel: #8 0xffffffff811f945e at VOP_IOCTL_APV+0x7e
kernel: #9 0xffffffff80c7a144 at vn_ioctl+0x1a4
kernel: #10 0xffffffff80a520af at devfs_ioctl_f+0x1f
kernel: #11 0xffffffff80c04f3d at kern_ioctl+0x26d
kernel: #12 0xffffffff80c04c5e at sys_ioctl+0x15e
kernel: #13 0xffffffff81075449 at amd64_syscall+0x369
kernel: #14 0xffffffff8104fd1d at fast_syscall_common+0x101
kernel: panic: sleeping thread
kernel: cpuid = 2
kernel: time = 1554059485
kernel: KDB: stack backtrace:
kernel: #0 0xffffffff80be7977 at kdb_backtrace+0x67
kernel: #1 0xffffffff80b9b563 at vpanic+0x1a3
kernel: #2 0xffffffff80b9b3b3 at panic+0x43
kernel: #3 0xffffffff80bfd412 at propagate_priority+0x2b2
kernel: #4 0xffffffff80bfe048 at turnstile_wait+0x338
kernel: #5 0xffffffff80b7ade6 at __mtx_lock_sleep+0x196
kernel: #6 0xffffffff80f0071e at vm_reserv_alloc_page+0x4ee
kernel: #7 0xffffffff80ef2c7e at vm_page_alloc_domain_after+0xde
kernel: #8 0xffffffff80ef2aa4 at vm_page_alloc+0x74
kernel: #9 0xffffffff80edbd3c at vm_fault_hold+0x13ac
kernel: #10 0xffffffff80eda940 at vm_fault+0x60
kernel: #11 0xffffffff81074ae3 at trap_pfault+0x163
kernel: #12 0xffffffff81074175 at trap+0x425
kernel: #13 0xffffffff8104f435 at calltrap+0x8
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