Panic after plugging in an mp3 usb player, 5.4-PRERELEASE

[Radek Kozlowski]

My 5.4-PRERELEASE/i386 as of today panics almost immediately after
plugging in an mp3 usb player (Qware BeatZkey! Pro 512MB). I don't have
device ehci in the kernel.

Mar 22 13:41:35 ddardaar kernel: umass0: vendor 0x10d6 USB 2.0(FS) FLASH DISK, rev 1.10/1.00, addr 2
Mar 22 13:41:35 ddardaar kernel: da0 at umass-sim0 bus 0 target 0 lun 0
Mar 22 13:41:35 ddardaar kernel: da0: <GENERIC USB DISK DEVICE 1.00> Removable Direct Access SCSI-0 device 
Mar 22 13:41:35 ddardaar kernel: da0: 1.000MB/s transfers
Mar 22 13:41:35 ddardaar kernel: da0: 497MB (1019617 512 byte sectors: 64H 32S/T 497C)
Mar 22 13:41:36 ddardaar kernel: umass0: BBB reset failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-in clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-out clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x4, scsi status == 0x0
Mar 22 13:41:36 ddardaar kernel: umass0: BBB reset failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-in clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-out clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB reset failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-in clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-out clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB reset failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-in clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-out clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB reset failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-in clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: BBB bulk-out clear stall failed, STALLED
Mar 22 13:41:36 ddardaar kernel: umass0: at uhub1 port 2 (addr 2) disconnected
Mar 22 13:41:36 ddardaar kernel: (da0:umass-sim0:0:0:0): lost device
Mar 22 13:41:36 ddardaar kernel: (da0:umass-sim0:0:0:0): removing device entry
Mar 22 13:41:36 ddardaar kernel: sysctl_unregister_oid: failed to unregister sysctl
Mar 22 13:41:36 ddardaar kernel: Opened disk da0 -> 5
Mar 22 13:41:36 ddardaar kernel: umass0: detached
Mar 22 13:41:47 ddardaar kernel: umass0: vendor 0x10d6 USB 2.0(FS) FLASH DISK, rev 1.10/1.00, addr 2
[panic, fatal trap 12]

#0  doadump () at pcpu.h:159
159		__asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt
#0  doadump () at pcpu.h:159
#1  0xc0445f02 in db_fncall (dummy1=-1067250851, dummy2=0, dummy3=-734074160, dummy4=0xd43eea68 "\234ę>Ô@")
    at /usr/src/sys/ddb/db_command.c:531
#2  0xc0446298 in db_command_loop () at /usr/src/sys/ddb/db_command.c:349
#3  0xc0447cec in db_trap (type=12, code=0) at /usr/src/sys/ddb/db_main.c:221
#4  0xc0522e19 in kdb_trap (type=12, code=0, tf=0xd43eebd8) at /usr/src/sys/kern/subr_kdb.c:418
#5  0xc063ef1a in trap_fatal (frame=0xd43eebd8, eva=296) at /usr/src/sys/i386/i386/trap.c:804
#6  0xc063f1cf in trap_pfault (frame=0xd43eebd8, usermode=0, eva=296) at /usr/src/sys/i386/i386/trap.c:727
#7  0xc063f56d in trap (frame=
      {tf_fs = 24, tf_es = 16, tf_ds = 16, tf_edi = -1041650752, tf_esi = -1040474112, tf_ebp = -734073832, tf_isp = -734073852, tf_ebx = 1, tf_edx = -1040474112, tf_ecx = 0, tf_eax = 256, tf_trapno = 12, tf_err = 0, tf_eip = -1069309535, tf_cs = 8, tf_eflags = 66050, tf_esp = -734073768, tf_ss = -1069300420}) at /usr/src/sys/i386/i386/trap.c:417
#8  0xc06325ca in calltrap () at /usr/src/sys/i386/i386/exception.s:140
#9  0x00000018 in ?? ()
#10 0x00000010 in ?? ()
#11 0x00000010 in ?? ()
#12 0xc1e9abc0 in ?? ()
#13 0xc1fba000 in ?? ()
#14 0xd43eec18 in ?? ()
#15 0xd43eec04 in ?? ()
#16 0x00000001 in ?? ()
#17 0xc1fba000 in ?? ()
#18 0x00000000 in ?? ()
#19 0x00000100 in ?? ()
#20 0x0000000c in ?? ()
#21 0x00000000 in ?? ()
#22 0xc043a1a1 in xpt_done (done_ccb=0x0) at /usr/src/sys/cam/cam_xpt.c:4834
#23 0xc043c53c in xpt_scan_bus (periph=0xc1d7ca80, request_ccb=0xc1fba000) at /usr/src/sys/cam/cam_xpt.c:5364
#24 0xc043d55e in camisr (V_queue=0xc06becc0) at /usr/src/sys/cam/cam_xpt.c:7061
#25 0xc04f62a5 in ithread_loop (arg=0xc1d7c980) at /usr/src/sys/kern/kern_intr.c:547
#26 0xc04f5380 in fork_exit (callout=0xc04f61f0 <ithread_loop>, arg=0xc1d7c980, frame=0xd43eed48)
    at /usr/src/sys/kern/kern_fork.c:790
#27 0xc063262c in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:209


If you need more info, please let me know. Thanks.

-Radek