Messages in this thread | | | From | Ulrich Callmeier <> | Subject | 1.3.84 Oops / ksymoops fix | Date | Tue, 9 Apr 1996 00:06:47 +0200 (MET DST) |
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Hi,
1) I suggest a trivial fix to ksymoops by changing 4096 to 8000 or something like this in line 98. ksymoops core dumped for me because the ksyms_0 array was too small before changing this. 1.3.84 has 4337 symbols with my setup.
2) I got the following Oops when doing shutdown. Setup: 1.3.84 with Redhat 3.0.3 on i486 I had executed /sbin/shutdown -h now The wellknown "error reading initrequest" messages scrolled over the screen when suddenly the output stopped and the following Oops appeared. After that console switching still worked and the screen saver (blanking) still worked, but nothing else.
Unable to handle kernel NULL pointer dereference at virtual address c0000000 current->tss.cr3 = 00fae000, %cr3 = 00fae000 *pde = 00102067 *pte = 00000027 Oops: 0000 CPU: 0 EIP: 0010:[<001906c9>] EFLAGS: 00010206 eax: 00000000 ebx: 00000005 ecx: 00f16000 edx: 00f16000 esi: 00f16000 edi: 00001000 ebp: 00f1651d esp: 00091d50 ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018 Process init (pid: 1, process nr: 1, stackpage=00091000) Stack: 00000005 00f16000 00001000 00f1651d 009081b4 0000006a 0022a080 00026c38 0022a290 00197ce0 0022a3f4 0026d039 00000000 0018bf6e 00f16000 00000000 00091d9b 00000001 209087a8 0018c458 00f16000 00000020 00f16020 00f16000 Call Trace: [<00197ce0>] [<0018bf6e>] [<0018c458>] [<0018c4ca>] [<0018d0b6>] [<0010f900>] [<0010c8c9>] [<0013d8d0>] [<0018becc>] [<00110ea8>] [<0011771b>] [<0010a4bb>] [<0018d7c0>] [<0018a9ec>] [<0015d8f6>] [<0018b14e>] [<00124811>] [<00122b0e>] [<00122bd2>] [<0010a539>] Code: 8b 00 89 44 24 2c 50 e8 eb dc ff ff 83 c4 04 85 c0 75 34 83 Aiee, killing interrupt handler
Output from ksymoops (after fix):
Using `System.map' to map addresses to symbols.
>>EIP: 1906c9 <con_write+19/15a0> Trace: 197ce0 <add_timer_randomness+190/1a0> Trace: 18bf6e <tty_default_put_char+1e/30> Trace: 18c458 <opost+1e8/200> Trace: 18c4ca <echo_char+5a/60> Trace: 18d0b6 <n_tty_receive_buf+7f6/b70> Trace: 10f900 <timer_interrupt> Trace: 10c8c9 <do_IRQ+39/50> Trace: 13d8d0 <unix_destroy_timer> Trace: 18becc <flush_to_ldisc+8c/a0> Trace: 110ea8 <tqueue_bh+28/40> Trace: 11771b <do_bottom_half+3b/70> Trace: 10a4bb <handle_bottom_half+b/20> Trace: 18d7c0 <n_tty_open+80/100> Trace: 18a9ec <init_dev+39c/5a0> Trace: 15d8f6 <ext2_lookup+b6/160> Trace: 18b14e <tty_open+7e/1d0> Trace: 124811 <chrdev_open+31/40> Trace: 122b0e <do_open+ee/180> Trace: 122bd2 <sys_open+32/60> Trace: 10a539 <system_call+59/a0>
Code: 1906c9 <con_write+19/15a0> movl (%eax),%eax Code: 1906cb <con_write+1b/15a0> movl %eax,0x2c(%esp,1) Code: 1906cf <con_write+1f/15a0> pushl %eax Code: 1906d0 <con_write+20/15a0> call ffffdcf7 <_EIP+ffffdcf7> Code: 1906d5 <con_write+25/15a0> addl $0x4,%esp Code: 1906d8 <con_write+28/15a0> testl %eax,%eax Code: 1906da <con_write+2a/15a0> jne 190710 <con_write+60/15a0> Code: 1906dc <con_write+2c/15a0> addl $0xffffff90,(%eax) Code: 1906df <con_write+2f/15a0> nop
-- Ulrich
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