https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=226510
Bug ID: 226510 Summary: Panic in da_periph_acquire() Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: no...@freebsd.org >From time to time on my desktop system running fairly fresh current I get a panic with the following trace: (kgdb) bt #0 __curthread () at ./machine/pcpu.h:230 #1 doadump (textdump=0) at /usr/src/sys/kern/kern_shutdown.c:347 #2 0xffffffff8040a96b in db_dump (dummy=<optimized out>, dummy2=<unavailable>, dummy3=<unavailable>, dummy4=<unavailable>) at /usr/src/sys/ddb/db_command.c:574 #3 0xffffffff8040a739 in db_command (last_cmdp=<optimized out>, cmd_table=<optimized out>, dopager=<optimized out>) at /usr/src/sys/ddb/db_command.c:481 #4 0xffffffff8040a4b4 in db_command_loop () at /usr/src/sys/ddb/db_command.c:534 #5 0xffffffff8040d6df in db_trap (type=<optimized out>, code=<optimized out>) at /usr/src/sys/ddb/db_main.c:250 #6 0xffffffff80b18ff3 in kdb_trap (type=3, code=-61456, tf=<optimized out>) at /usr/src/sys/kern/subr_kdb.c:697 #7 0xffffffff80f8b868 in trap (frame=0xfffffe005b975750) at /usr/src/sys/amd64/amd64/trap.c:547 #8 <signal handler called> #9 kdb_enter (why=0xffffffff811f9f80 "panic", msg=<optimized out>) at /usr/src/sys/kern/subr_kdb.c:479 #10 0xffffffff80ad3dca in vpanic (fmt=<optimized out>, ap=0xfffffe005b9758c0) at /usr/src/sys/kern/kern_shutdown.c:801 #11 0xffffffff80ad3e53 in panic (fmt=0xffffffff81be33f8 <cnputs_mtx> "\266;\034\201\377\377\377\377") at /usr/src/sys/kern/kern_shutdown.c:739 #12 0xffffffff80369c57 in da_periph_acquire (periph=<optimized out>, token=DA_REF_TUR) at /usr/src/sys/cam/scsi/scsi_da.c:1574 #13 damediapoll (arg=0xfffff80004bf2300) at /usr/src/sys/cam/scsi/scsi_da.c:5668 #14 0xffffffff80aebd00 in softclock_call_cc (c=0xfffffe0069c15a68, cc=0xffffffff81df2ac0 <cc_cpu>, direct=<optimized out>) at /usr/src/sys/kern/kern_timeout.c:731 #15 0xffffffff80aec0cc in softclock (arg=0xffffffff81df2ac0 <cc_cpu>) at /usr/src/sys/kern/kern_timeout.c:869 #16 0xffffffff80a96cc9 in intr_event_execute_handlers (p=<optimized out>, ie=0xfffff80003826200) at /usr/src/sys/kern/kern_intr.c:1338 #17 0xffffffff80a973b7 in ithread_execute_handlers (ie=<optimized out>, p=<optimized out>) at /usr/src/sys/kern/kern_intr.c:1351 #18 ithread_loop (arg=0xfffff8000382f120) at /usr/src/sys/kern/kern_intr.c:1432 #19 0xffffffff80a94104 in fork_exit (callout=0xffffffff80a97300 <ithread_loop>, arg=0xfffff8000382f120, frame=0xfffffe005b975ac0) at /usr/src/sys/kern/kern_fork.c:1039 #20 <signal handler called> (kgdb) Sources version: Last Changed Rev: 330676 Last Changed Date: 2018-03-09 04:50:40 +0400 (Fri, 09 Mar 2018) The only da(4) device I had when it paniced was: da0 at umass-sim0 bus 0 scbus4 target 0 lun 0 da0: <Multi Flash Reader 1.00> Removable Direct Access SCSI device da0: Serial Number 058F0O1111B1 da0: 40.000MB/s transfers da0: Attempt to query device size failed: NOT READY, Medium not present da0: quirks=0x2<NO_6_BYTE> This is a flash card reader, and usually it stays connected, but without flash cards attached to it. In other words, I didn't do anything with it to trigger a panic. -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-bugs@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"