Re: Repeatable lockup on SMP w/usbprocfs

From: Tony Hoyle (tmh@magenta-netlogic.com)
Date: Wed Mar 28 2001 - 18:36:35 EST


I've enabled spinlock debugging, and generated a nice oops... The USB
system is definately doing something wrong somewhere.

Tony

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tmh@magenta-netlogic.com http://www.nothing-on.tv

ksymoops 2.3.7 on i686 2.4.2-ac26. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.2-ac26/ (default) -m /boot/System.map-2.4.2-ac26 (default)

Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options.

eip: d28eb1b5 kernel BUG at /usr/src/linux/include/asm/spinlock.h:90! invalid operand: 0000 CPU: 1 EIP: 0010:[<d28eb1dc>] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010086 eax: 00000038 ebx: cff44710 ecx: c0264ba0 edx: 00004e26 esi: cda794bc edi: cff44680 ebp: ffffffea esp: cd28ded8 ds: 0018 es: 0018 ss: 0018 Process mgmt (pid: 408, stackpage=cd28d000) Stack: d28edae0 0000005a cda793c8 cda794a0 cda793a0 00000286 cda794c8 cff44710 00000292 cff44680 d28d90e6 cda794bc d28deb1f cda794bc cda793a0 bffffc70 <4>fffffdfd cfb69940 00000002 00000000 00000000 00008103 00000000 00000000 Call Trace: [<d28edae0>] [<d28d90e6>] [<d28deb1f>] [<d28df627>] [<c014d588>] [<c014d588>] [<c010756b>] Code: 0f 0b 83 c4 08 f0 fe 0e 88 ee 27 00 00 8b 46 20 83 f8 8d

>>EIP; d28eb1dc <[uhci]uhci_submit_urb+134/3fc> <===== Trace; d28edae0 <[uhci].rodata.start+20/110c> Trace; d28d90e6 <[usbcore]usb_submit_urb+1e/30> Trace; d28deb1f <[usbcore]proc_submiturb+56f/64c> Trace; d28df627 <[usbcore]usbdev_ioctl+1ef/298> Trace; c014d588 <file_ioctl+148/15c> Trace; c014d588 <file_ioctl+148/15c> Trace; c010756b <system_call+33/38> Code; d28eb1dc <[uhci]uhci_submit_urb+134/3fc> 00000000 <_EIP>: Code; d28eb1dc <[uhci]uhci_submit_urb+134/3fc> <===== 0: 0f 0b ud2a <===== Code; d28eb1de <[uhci]uhci_submit_urb+136/3fc> 2: 83 c4 08 add $0x8,%esp Code; d28eb1e1 <[uhci]uhci_submit_urb+139/3fc> 5: f0 fe 0e lock decb (%esi) Code; d28eb1e4 <[uhci]uhci_submit_urb+13c/3fc> 8: 88 ee mov %ch,%dh Code; d28eb1e6 <[uhci]uhci_submit_urb+13e/3fc> a: 27 daa Code; d28eb1e7 <[uhci]uhci_submit_urb+13f/3fc> b: 00 00 add %al,(%eax) Code; d28eb1e9 <[uhci]uhci_submit_urb+141/3fc> d: 8b 46 20 mov 0x20(%esi),%eax Code; d28eb1ec <[uhci]uhci_submit_urb+144/3fc> 10: 83 f8 8d cmp $0xffffff8d,%eax

1 warning issued. Results may not be reliable.

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This archive was generated by hypermail 2b29 : Sat Mar 31 2001 - 21:00:20 EST