Re: panic at ehci_abort_xfer

"Paul B. Mahol" <onemda_at_gmail.com> writes:
> On 10/2/08, Boris Samorodov <bsam_at_ipt.ru> wrote:
>> Hello All,
>>
>>
>> I've got a panic at today's CURRENT/i386 after inserting an USB
>> Linksys Wifi Adapter (the adapter had been scanning):
>
> Which driver?

rum

> This is first time it happened on same hardware, and it was working
> without problems on older(how much) CURRENT?
> Or, this is first time you have insterted that adapter in CURRENT?

This is a new EeePC-1000 (Atom 1.6Ghz with hyperthreading enabled)
and new system. Since no network cards (neither Eth nore Wifi) is
currently supported I try to use an USB Linksys Adapter WUSB54GC.

> Look in usb/124758 maybe it is same bug.

Yes, very much alike.

>> -----
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>> This GDB was configured as "i386-marcel-freebsd"...
>>
>> Unread portion of the kernel message buffer:
>>
>> Fatal trap 12: page fault while in kernel mode
>> cpuid = 1; apic id = 01
>> fault virtual address	= 0x38
>> fault code		= supervisor read, page not present
>> instruction pointer	= 0x20:0xc072fb57
>> stack pointer	        = 0x28:0xc3ed6c94
>> frame pointer	        = 0x28:0xc3ed6ccc
>> code segment		= base 0x0, limit 0xfffff, type 0x1b
>> 			= DPL 0, pres 1, def32 1, gran 1
>> processor eflags	= interrupt enabled, resume, IOPL = 0
>> current process		= 15 (usbtask-hc)
>> trap number		= 12
>> panic: page fault
>> cpuid = 1
>> Uptime: 8m11s
>> Physical memory: 1003 MB
>> Dumping 54 MB: 39 23 7
>> [...]
>> #0  doadump () at pcpu.h:221
>> 	in pcpu.h
>> (kgdb) list *0xc072fb57
>> 0xc072fb57 is in ehci_abort_xfer (/usr/src/sys/dev/usb/ehci.c:2959).
>> 2954			 * (if there is one). We only need to do this if
>> 2955			 * it was previously pointing to us.
>> 2956			 */
>> 2957			for (sqtd = exfer->sqtdstart; ; sqtd = sqtd->nextqtd) {
>> 2958				if (cur == sqtd->physaddr) {
>> 2959					hit++;
>> 2960				}
>> 2961				if (sqtd == exfer->sqtdend)
>> 2962					break;
>> 2963			}
>> (kgdb) backtrace
>> #0  doadump () at pcpu.h:221
>> #1  0xc07fdfbc in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:420
>> #2  0xc07fe2c2 in panic (fmt=) at /usr/src/sys/kern/kern_shutdown.c:576
>> #3  0xc0b27983 in trap_fatal (frame=0xc3ed6c54, eva=56)
>>     at /usr/src/sys/i386/i386/trap.c:943
>> #4  0xc0b27c00 in trap_pfault (frame=0xc3ed6c54, usermode=0, eva=56)
>>     at /usr/src/sys/i386/i386/trap.c:856
>> #5  0xc0b2860a in trap (frame=0xc3ed6c54) at
>> /usr/src/sys/i386/i386/trap.c:536
>> #6  0xc0b0c59b in calltrap () at /usr/src/sys/i386/i386/exception.s:165
>> #7  0xc072fb57 in ehci_abort_xfer (xfer=) at
>> /usr/src/sys/dev/usb/ehci.c:2959
>> #8  0xc0731360 in ehci_timeout_task (addr=0xc482ee00)
>>     at /usr/src/sys/dev/usb/ehci.c:3112
>> #9  0xc07644b1 in usb_task_thread (arg=0xc0d05dc0)
>>     at /usr/src/sys/dev/usb/usb.c:485
>> #10 0xc07dc633 in fork_exit (callout=0xc0764400 <usb_task_thread>,
>>     arg=0xc0d05dc0, frame=0xc3ed6d38) at /usr/src/sys/kern/kern_fork.c:810
>> #11 0xc0b0c610 in fork_trampoline () at
>> /usr/src/sys/i386/i386/exception.s:270
>> (kgdb) quit
>> -----
>>
>>
>> WBR
>> --
>> Boris Samorodov (bsam)
>> Research Engineer, http://www.ipt.ru Telephone & Internet SP
>> FreeBSD committer, http://www.FreeBSD.org The Power To Serve
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>>

WBR
-- 
bsam
Boris Samorodov (bsam)
Research Engineer, http://www.ipt.ru Telephone & Internet SP
FreeBSD committer, http://www.FreeBSD.org The Power To Serve