[Bug 200384] ctld

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Fri May 22 11:34:55 UTC 2015


            Bug ID: 200384
           Summary: ctld
           Product: Base System
           Version: 10.1-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: olgeni at FreeBSD.org

Created attachment 157032
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=157032&action=edit
Sample ctl.conf

Loading ctld causes a panic at boot (ctld_enable="YES" in rc.conf) when the
following kernel options are enabled: DEADLKRES, DEBUG_LOCKS, DEBUG_VFS_LOCKS,

It seems repeatable so far - the options were actually enbled to track down a
possible deadlock elsewhere.

Fatal trap 9: general protection fault while in kernel mode
cpuid = 2; apic id = 02
instruction pointer    = 0x20:0xffffffff802e476a
stack pointer            = 0x28:0xfffffe046a4467c0
frame pointer            = 0x28:0xfffffe046a4468a0
code segment        = base 0x0, limit 0xfffff, type 0x1b
            = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags    = interrupt enabled, resume, IOPL = 0
current process        = 4 (scanner)
trap number        = 9
panic: general protection fault
cpuid = 2
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe046a446340
kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe046a4463f0
vpanic() at vpanic+0x126/frame 0xfffffe046a446430
panic() at panic+0x43/frame 0xfffffe046a446490
trap_fatal() at trap_fatal+0x38f/frame 0xfffffe046a4464f0
trap() at trap+0x818/frame 0xfffffe046a446700
calltrap() at calltrap+0x8/frame 0xfffffe046a446700
--- trap 0x9, rip = 0xffffffff802e476a, rsp = 0xfffffe046a4467c0, rbp =
0xfffffe046a4468a0 ---
cam_periph_alloc() at cam_periph_alloc+0x48a/frame 0xfffffe046a4468a0
scsi_scan_lun() at scsi_scan_lun+0x1cb/frame 0xfffffe046a446ae0
scsi_scan_bus() at scsi_scan_bus+0x809/frame 0xfffffe046a446b50
xpt_scanner_thread() at xpt_scanner_thread+0x10b/frame 0xfffffe046a446bb0
fork_exit() at fork_exit+0x84/frame 0xfffffe046a446bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe046a446bf0
--- trap 0, rip = 0, rsp = 0xfffffe046a446cb0, rbp = 0 ---
Uptime: 22s

ctl.conf only references one zvol.

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