Date: Thu, 03 Aug 2006 11:33:03 +0200 From: =?UTF-8?B?Ikpvc8OpIE0uIEZhbmRpw7FvIg==?= <freebsd4@fadesa.es> To: freebsd-hackers@freebsd.org Subject: Re: ural(4) and panic on sleeping thread (6.1-R) Message-ID: <44D1C2CF.1020403@fadesa.es> In-Reply-To: <200608011429.42407.jhb@freebsd.org> References: <44CF7A28.6020704@fadesa.es> <200608011429.42407.jhb@freebsd.org>
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John Baldwin wrote:
> In kgdb, do 'proc 783', and then 'where' to get a stack trace of the th=
read=20
> that did the wrong thing. (The thread that panics is just an innocent=
=20
> victim that bumped into the miscreant.)
(kgdb) proc 783
(kgdb) where
#0 0xc065f2c7 in sched_switch (td=3D0xc283e900, newtd=3D0xc2535780, flag=
s=3D1)
at /usr/src/sys/kern/sched_4bsd.c:973
#1 0xc06544e2 in mi_switch (flags=3D1, newtd=3D0x0)
at /usr/src/sys/kern/kern_synch.c:336
#2 0xc066c012 in sleepq_switch (wchan=3D0x0)
at /usr/src/sys/kern/subr_sleepqueue.c:445
#3 0xc066c102 in sleepq_wait (wchan=3D0xc2cfda00)
at /usr/src/sys/kern/subr_sleepqueue.c:525
#4 0xc065422d in msleep (ident=3D0xc2cfda00, mtx=3D0x0, priority=3D76,
wmesg=3D0xc08a076d "usbsyn", timo=3D0) at /usr/src/sys/kern/kern_syn=
ch.c:209
#5 0xc05ee105 in usbd_transfer (xfer=3D0xc2cfda00)
at /usr/src/sys/dev/usb/usbdi.c:344
#6 0xc05ee125 in usbd_sync_transfer (xfer=3D0x0)
at /usr/src/sys/dev/usb/usbdi.c:355
#7 0xc05ee901 in usbd_do_request_flags_pipe (dev=3D0xc276cc00, pipe=3D0x=
0,
req=3D0xd4bf2a4c, data=3D0xd4bf2a4a, flags=3D0, actlen=3D0x0, timeou=
t=3D5000)
at /usr/src/sys/dev/usb/usbdi.c:982
#8 0xc05ee8a0 in usbd_do_request_flags (dev=3D0x0, req=3D0xd4bf2a4c,
data=3D0xd4bf2a4a, flags=3D0, actlen=3D0x0, timo=3D5000)
at /usr/src/sys/dev/usb/usbdi.c:953
#9 0xc05ee87e in usbd_do_request (dev=3D0xc276cc00, req=3D0xd4bf2a4c,
data=3D0xd4bf2a4a) at /usr/src/sys/dev/usb/usbdi.c:945
#10 0xc05d7876 in ural_read (sc=3D0xc2768000, reg=3D0)
at /usr/src/sys/dev/usb/if_ural.c:1545
#11 0xc05d7a43 in ural_bbp_write (sc=3D0xc2768000, reg=3D22 '\026', val=3D=
8 '\b')
at /usr/src/sys/dev/usb/if_ural.c:1619
#12 0xc05d83d5 in ural_bbp_init (sc=3D0xc2768000)
at /usr/src/sys/dev/usb/if_ural.c:1998
#13 0xc05d85bd in ural_init (priv=3D0xc2768000)
at /usr/src/sys/dev/usb/if_ural.c:2104
#14 0xc05d76ae in ural_ioctl (ifp=3D0xc2796400, cmd=3D2149607696,
data=3D0xd4bf2b08 "@1\222=C3=80|-\222=C3=800+=C2=BF=C3=94")
at /usr/src/sys/dev/usb/if_ural.c:1470
#15 0xc06b9c54 in if_setflag (ifp=3D0xc2796400, flag=3D0, pflag=3D0,
refcount=3D0xc2796444, onswitch=3D0) at /usr/src/sys/net/if.c:1664
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