Messages in this thread |  | | Date | Sat, 31 Aug 2002 00:39:13 +0200 | From | Diego Biurrun <> | Subject | Oops after removing PCMCIA modem with low latency patch |
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Hello!
I just tried your 2.4.19-low-latency patch on a stock 2.4.19 kernel and my box oopses when I manually remove my PCMCIA modem. I know I should probably use cardctl eject, but I guess the kernel should not oops in any case and other PCMCIA cards do not have that problem.
I spent the whole day trying to debug the oops because minicom and my serial console do not seem to want to get along. I suspect a hardware bug somewhere, I always got garbled output. I managed to capture the output once but was not able to reproduce the correct settings again, so apologies if I cannot provide the correct information.
Back to topic: I figured you might be interested in this, so I am sending you the output of ksymoops. If you need more information I will be more than happy to provide it. Thanks for your work on the Linux kernel. Regards
Diego Biurrun
My system: Toshiba Satellite 320CDT Pentium MMX 233 96MB RAM
output of cardctl ident: Socket 0: product info: "Kingston", "KNE-CB4TX", "", "1.00" manfid: 0x0186, 0x0101 function: 6 (network) Socket 1: product info: "ROCKWELL", "RFI AnyCom-Eco 336 PC Card", "021", "A" manfid: 0x0175, 0x0000 function: 2 (serial)
output of lspci -v:
00:00.0 Host bridge: Toshiba America Info Systems 601 (rev a0) Subsystem: Toshiba America Info Systems: Unknown device 0001 Flags: bus master, medium devsel, latency 0
00:04.0 VGA compatible controller: Chips and Technologies F65555 HiQVPro (rev c6) (prog-if 00 [VGA]) Subsystem: Toshiba America Info Systems: Unknown device 0001 Flags: stepping, medium devsel Memory at fd000000 (32-bit, non-prefetchable) [size=16M] Expansion ROM at <unassigned> [disabled] [size=256K]
00:0b.0 USB Controller: NEC Corporation USB (rev 02) (prog-if 10 [OHCI]) Subsystem: Toshiba America Info Systems: Unknown device 0001 Flags: bus master, medium devsel, latency 64, IRQ 11 Memory at fcfff000 (32-bit, non-prefetchable) [size=4K]
00:11.0 Communication controller: Toshiba America Info Systems FIR Port (rev 21) Subsystem: Toshiba America Info Systems: Unknown device 0001 Flags: bus master, slow devsel, latency 64, IRQ 11 I/O ports at ffe0 [size=32]
00:13.0 CardBus bridge: Toshiba America Info Systems ToPIC95 (rev 07) Subsystem: Toshiba America Info Systems: Unknown device 0001 Flags: bus master, slow devsel, latency 0, IRQ 11 Memory at 10000000 (32-bit, non-prefetchable) [size=4K] Bus: primary=00, secondary=14, subordinate=14, sec-latency=0 Memory window 0: 10400000-107ff000 (prefetchable) Memory window 1: 10800000-10bff000 I/O window 0: 00004000-000040ff I/O window 1: 00004400-000044ff 16-bit legacy interface ports at 0001
00:13.1 CardBus bridge: Toshiba America Info Systems ToPIC95 (rev 07) Subsystem: Toshiba America Info Systems: Unknown device 0001 Flags: bus master, slow devsel, latency 0, IRQ 11 Memory at 10001000 (32-bit, non-prefetchable) [size=4K] Bus: primary=00, secondary=15, subordinate=15, sec-latency=0 Memory window 0: 10c00000-10fff000 (prefetchable) Memory window 1: 11000000-113ff000 I/O window 0: 00004800-000048ff I/O window 1: 00004c00-00004cff 16-bit legacy interface ports at 0001
14:00.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 41) Subsystem: Kingston Technologies: Unknown device 0002 Flags: bus master, medium devsel, latency 64, IRQ 11 I/O ports at 4000 [size=128] Memory at 10800000 (32-bit, non-prefetchable) [size=1K] Expansion ROM at 10400000 [size=256K]
ksymoops 2.4.5 on i586 2.4.19. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.19/ (default) -m /boot/System.map-2.4.19 (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.
kernel BUG at sched.c:577! invalid operand: 0000 CPU: 0 EIP: 0010:[<c0112de9>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010082 eax: 00000018 ebx: c024a000 ecx: c3378000 edx: 00000001 esi: 00000000 edi: c3147280 ebp: c024be18 esp: c024bdf4 ds: 0018 es: 0018 ss: 0018 Process swapper (pid: 0, stackpage=c024b000) Stack: c01ed4de c024a000 00000000 c3147280 c11f2ba0 00000001 00000000 c024a000 c0164127 c024be20 c0113d15 c35b753c c013272f c3147280 00000000 c0215860 c35b753c c0142647 c3147280 c3147280 c0143046 c3147280 c35447a0 c34a1ec0 Call Trace: [<c0164127>] [<c0113d15>] [<c013272f>] [<c0142647>] [<c0143046>] [<c0165bad>] [<c0140cc3>] [<c01643b0>] [<c01649ba>] [<c0164a0f>] [<c016e1ef>] [<c0115aa3>] [<c01159e7>] [<c0181136>] [<c725cd4a>] [<c725cd1c>] [<c011c94f>] [<c0119482>] [<c01193b6>] [<c01191ca>] [<c0109b9d>] [<c0106d10>] [<c010bd28>] [<c0106d10>] [<c0106d33>] [<c0106d97>] [<c0105000>] [<c0105027>] Code: 0f 0b 41 02 d6 d4 1e c0 83 c4 04 8b 4d f4 c1 e1 05 81 c1 40
>>EIP; c0112de9 <schedule+4d/2f4> <=====
>>ebx; c024a000 <init_task_union+0/2000> >>ecx; c3378000 <_end+30e93ac/6f9f3ac> >>edi; c3147280 <_end+2eb862c/6f9f3ac> >>ebp; c024be18 <init_task_union+1e18/2000> >>esp; c024bdf4 <init_task_union+1df4/2000>
Trace; c0164127 <_devfs_walk_path+5f/d4> Trace; c0113d15 <set_running_and_schedule+1d/24> Trace; c013272f <invalidate_inode_buffers+1b/88> Trace; c0142647 <clear_inode+b/b0> Trace; c0143046 <iput+d6/1ac> Trace; c0165bad <devfs_d_iput+59/68> Trace; c0140cc3 <dput+c3/124> Trace; c01643b0 <free_dentry+3c/44> Trace; c01649ba <_devfs_unregister+36/74> Trace; c0164a0f <devfs_unregister+17/24> Trace; c016e1ef <tty_unregister_devfs+43/50> Trace; c0115aa3 <release_console_sem+73/78> Trace; c01159e7 <printk+ff/114> Trace; c0181136 <unregister_serial+5e/7c> Trace; c725cd4a <[serial_cs]serial_release+2e/80> Trace; c725cd1c <[serial_cs]serial_release+0/80> Trace; c011c94f <timer_bh+26b/384> Trace; c0119482 <bh_action+1a/40> Trace; c01193b6 <tasklet_hi_action+4a/70> Trace; c01191ca <do_softirq+5a/ac> Trace; c0109b9d <do_IRQ+a1/b4> Trace; c0106d10 <default_idle+0/28> Trace; c010bd28 <call_do_IRQ+5/d> Trace; c0106d10 <default_idle+0/28> Trace; c0106d33 <default_idle+23/28> Trace; c0106d97 <cpu_idle+3f/54> Trace; c0105000 <_stext+0/0> Trace; c0105027 <rest_init+27/28>
Code; c0112de9 <schedule+4d/2f4> 00000000 <_EIP>: Code; c0112de9 <schedule+4d/2f4> <===== 0: 0f 0b ud2a <===== Code; c0112deb <schedule+4f/2f4> 2: 41 inc %ecx Code; c0112dec <schedule+50/2f4> 3: 02 d6 add %dh,%dl Code; c0112dee <schedule+52/2f4> 5: d4 1e aam $0x1e Code; c0112df0 <schedule+54/2f4> 7: c0 83 c4 04 8b 4d f4 rolb $0xf4,0x4d8b04c4(%ebx) Code; c0112df7 <schedule+5b/2f4> e: c1 e1 05 shl $0x5,%ecx Code; c0112dfa <schedule+5e/2f4> 11: 81 c1 40 00 00 00 add $0x40,%ecx
<0>Kernel panic: Aiee, killing interrupt handler!
1 warning issued. Results may not be reliable.
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