Date: Tue, 22 Jun 2010 17:08:38 GMT From: Mark Atkinson <m.atkinson@f5.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/148070: panic: _mtx_lock_sleep: recursed on non-recursive mutex XPT topology lock @ /usr/src/sys/cam/cam_xpt.c:4814 Message-ID: <201006221708.o5MH8cWi046200@www.freebsd.org> Resent-Message-ID: <201006221710.o5MHA47E084155@freefall.freebsd.org>
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>Number: 148070 >Category: kern >Synopsis: panic: _mtx_lock_sleep: recursed on non-recursive mutex XPT topology lock @ /usr/src/sys/cam/cam_xpt.c:4814 >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Jun 22 17:10:04 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Mark Atkinson >Release: FreeBSD-current Revision: 209398 >Organization: >Environment: FreeBSD dl385g5 9.0-CURRENT FreeBSD 9.0-CURRENT #9 r: Tue Jun 22 08:07:09 PDT 2010 root@dl385g5:/usr/obj/usr/src/sys/DL385G5 amd64 >Description: camcontrol negotiate causes a recursed on non-recursive mutex panic in xpt. amd64 GENERIC kernel. ciss0@pci0:70:0:0: class=0x010400 card=0x3234103c chip=0x3230103c rev=0x04 hdr=0x00 vendor = 'Hewlett-Packard Company' device = 'Smart Array P400 Controller (Smart Array P400 Controller)' class = mass storage subclass = RAID # camcontrol devlist <COMPAQ RAID 1 VOLUME OK> at scbus0 target 0 lun 0 (pass0,da0) # camcontrol negotiate 0:0:0 -v panic: _mtx_lock_sleep: recursed on non-recursive mutex XPT topology lock @ /usr/src/sys/cam/cam_xpt.c:4814 cpuid = 0 KDB: enter: panic [ thread pid 26183 tid 100161 ] Stopped at kdb_enter+0x3d: movq $0,0x6d03c0(%rip) db> bt Tracing pid 26183 tid 100161 td 0xffffff0048c98b70 kdb_enter() at kdb_enter+0x3d panic() at panic+0x17b _mtx_lock_sleep() at _mtx_lock_sleep+0x151 _mtx_lock_flags() at _mtx_lock_flags+0xe1 xptpdperiphtraverse() at xptpdperiphtraverse+0x1c xptpdrvtraverse() at xptpdrvtraverse+0x43 xpt_action_default() at xpt_action_default+0xbf7 xptioctl() at xptioctl+0x633 devfs_ioctl_f() at devfs_ioctl_f+0x76 kern_ioctl() at kern_ioctl+0xc5 ioctl() at ioctl+0xef syscallenter() at syscallenter+0xef syscall() at syscall+0x4c Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (54, FreeBSD ELF64, ioctl), rip = 0x800a7976c, rsp = 0x7fffffffd978, rbp = 0x3 --- >How-To-Repeat: camcontrol negotiate on a ciss device. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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