Date: Sat, 15 Sep 2007 13:47:15 +0200 From: Zahemszky =?ISO-8859-2?Q?G=E1bor?= <Gabor@Zahemszky.HU> To: Weongyo Jeong <weongyo.jeong@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: crash (and the backtrace) in the new if_zyd driver Message-ID: <20070915134715.1abd092d@Picasso.Zahemszky.HU> In-Reply-To: <20070915032507.GA94238@freebsd.weongyo.org> References: <20070908164003.06ffa0dc@Picasso.Zahemszky.HU> <20070915032507.GA94238@freebsd.weongyo.org>
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Sat, 15 Sep 2007 12:25:07 +0900 -n
Weongyo Jeong <weongyo.jeong@gmail.com> =C3=ADrta:
Hi!
Here it is.
> I checked your panic in my environment and tried to repeat panic you
> encountered, but I failed.
Interesting :-(
> condition in ehci or zyd. Can you try to build the buildworld and the
> buildkernel newly with CURRENT and tell me the result after trying to
> up the zyd driver again?
The source is csup-ped today morning, after reading your e-mail. (I
compiled if_zyd *into* the kernel (and made a module, too). Now, I can
'ifconfig up' the interface without panic. I can ifconfig zyd0 list
scan, too, but some seconds later, it panicked. The backtrace is:
=3D=3D=3D
Picasso# kgdb
-q /usr/obj/usr/src/sys/GENERIC/kernel.debug /var/crash/vmcore.1
[GDB will not be able to debug user-mode
threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
cpuid =3D 1; apic id =3D 01
fault virtual address =3D 0x34
fault code =3D supervisor read, page not present
instruction pointer =3D 0x20:0xc06a0d66
stack pointer =3D 0x28:0xe3d6ea4c
frame pointer =3D 0x28:0xe3d6ea74
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D interrupt enabled, resume, IOPL =3D 0
current process =3D 13 (swi4: clock sio)
Physical memory: 2009 MB
Dumping 75 MB: 60 44 28 12
#0 doadump () at pcpu.h:195
195 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc048cec9 in db_fncall (dummy1=3D-472455052, dummy2=3D0, dummy3=3D582,
dummy4=3D0xe3d6e7e0 "p=F1H=C0") at /usr/src/sys/ddb/db_command.c:486
#2 0xc048d435 in db_command_loop ()
at /usr/src/sys/ddb/db_command.c:401=20
#3 0xc048eba5 in db_trap (type=3D12, code=3D0)
at /usr/src/sys/ddb/db_main.c:222=20
#4 0xc0777926 in kdb_trap (type=3D12, code=3D0, tf=3D0xe3d6ea0c)
at /usr/src/sys/kern/subr_kdb.c:502=20
#5 0xc0a0431f in trap_fatal (frame=3D0xe3d6ea0c, eva=3D52)
at /usr/src/sys/i386/i386/trap.c:863=20
#6 0xc0a04553 in trap_pfault (frame=3D0xe3d6ea0c, usermode=3D0, eva=3D52)
at /usr/src/sys/i386/i386/trap.c:785=20
#7 0xc0a04f05 in trap (frame=3D0xe3d6ea0c)
at /usr/src/sys/i386/i386/trap.c:463=20
#8 0xc09eaa9b in calltrap () at /usr/src/sys/i386/i386/exception.s:139=20
#9 0xc06a0d66 in ehci_alloc_sqtd (sc=3D0xc519a000)
at /usr/src/sys/dev/usb/ehci.c:2281=20
#10 0xc06a33f1 in ehci_device_bulk_start (xfer=3D0xc556dc00)
at /usr/src/sys/dev/usb/ehci.c:3032=20
#11 0xc06a35d3 in ehci_device_bulk_transfer (xfer=3D0xc556dc00)
at /usr/src/sys/dev/usb/ehci.c:2998=20
#12 0xc06d1fab in usbd_start_transfer (arg=3D0xc556dc00, segs=3D0xc556dc3c,
nseg=3D1, error=3D0) at /usr/src/sys/dev/usb/usbdi.c:388=20
#13 0xc06d2545 in usbd_transfer (xfer=3D0xc556dc00)
at /usr/src/sys/dev/usb/usbdi.c:320=20
#14 0xc06b88d2 in zyd_start (ifp=3D0xc5630c00)
at /usr/src/sys/dev/usb/if_zyd.c:2096=20
#15 0xc07df959 in if_start (ifp=3D0xc5630c00)
at /usr/src/sys/net/if.c:2704=20
#16 0xc08104c5 in ieee80211_send_probereq (ni=3D0xc5ac7000, sa=3D0xc5ac5288
"", da=3D0xc0a3aa80 "=FF=FF=FF=FF=FF=FFether_ifattach", bssid=3D0xc0a3aa80
"=FF=FF=FF=FF=FF=FFether_ifattach", ssid=3D0xc0a8ebdb "", ssidlen=3D0, opti=
e=3D0x0,
optielen=3D0) at /usr/src/sys/net80211/ieee80211_output.c:1540=20
#17 0xc0816e9a in scan_curchan (ic=3D0xc5ac5008, maxdwell=3D200)
at /usr/src/sys/net80211/ieee80211_scan.c:664=20
#18 0xc0815ff9 in scan_next (arg=3D0xc55ad000)
at /usr/src/sys/net80211/ieee80211_scan.c:753=20
#19 0xc07626e9 in softclock (dummy=3D0x0)
at /usr/src/sys/kern/kern_timeout.c:281=20
#20 0xc0735655 in ithread_loop (arg=3D0xc50b24f0)
at /usr/src/sys/kern/kern_intr.c:1036=20
#21 0xc0732ad8 in fork_exit (callout=3D0xc07354a0 <ithread_loop>,
arg=3D0xc50b24f0, frame=3D0xe3d6ed38) at /usr/src/sys/kern/kern_fork.c:797
#22 0xc09eab10 in fork_trampoline ()
at /usr/src/sys/i386/i386/exception.s:205 (kgdb)=20
=3D=3D=3D
Bye, Gabor < Gabor at Zahemszky dot HU >
--=20
#!/bin/ksh
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=3D ??? ]]&&j=3D$i&&i=3D${i%?};typeset -i40 i=3D8#$i;print -n ${i#???};[[ "=
$j"
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$i";typeset +l i;};print "$j"
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