Messages in this thread | | | Date | Wed, 18 Mar 1998 06:20:10 -0600 (CST) | From | Mark Orr <> | Subject | rmmoding sb driver (90pre3/2.1.90) oops |
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Upon further review....
It's not as bad as it looked at first...the oops/trashing that happens when rmmod'ing the sb driver (either manually, or by kmod) doesnt stop ppp.o/slhc.o/ppp_deflate.o from loading -- so that's good.
lets go to the videotape:
root@darkstar:~# rmmod sb kfree: Bad obj c1818000 Unable to handle kernel NULL pointer dereference at virtual address 00000000 current->tss.cr3 = 00a78000, %cr3 = 00a78000 *pde = 00000000 Oops: 0002 CPU: 0 EIP: 0010:[<c011f31b>] EFLAGS: 00010282 eax: 0000001b ebx: c1818000 ecx: 00000009 edx: 00000000 esi: c1818000 edi: 00000000 ebp: bffffad8 esp: c087ff58 ds: 0018 es: 0018 ss: 0018 Process rmmod (pid: 479, process nr: 12, stackpage=c087f000) Stack: c018262f c1818000 c1818000 c1811000 00000000 bffffad8 00000000 00000000 c18136c7 c1818000 c1811000 c1812552 c1816644 c1812697 c1816644 c0115fc4 c1811000 fffffff0 c087ffbc c01155d6 c1811000 00000000 c087e000 00000000 Call Trace: [<c018262f>] [<c1818000>] [<c1818000>] [<c1811000>] [<c18136c7>] [<c1818000>] [<c1811000>] [<c1812552>] [<c1816644>] [<c1812697>] [<c1816644>] [<c0115fc4>] [<c1811000>] [<c01155d6>] [<c1811000>] [<c010993a>] Code: c7 05 00 00 00 00 00 00 00 00 83 c4 08 5b 5e 5f 5d 83 c4 08 Segmentation fault
--- and here's what ksymoops tells me:
Using `/System.map' to map addresses to symbols.
>>EIP: c011f31b <kfree+18b/1a0> Trace: c018262f <tvecs+11ab/453a> Trace: c1818000 Trace: c1818000 Trace: c1811000 Trace: c18136c7 Trace: c1818000 Trace: c1811000 Trace: c1812552 Trace: c1816644 Trace: c1812697 Trace: c1816644 Trace: c0115fc4 <free_module+20/9c> Trace: c1811000 Trace: c01155d6 <sys_delete_module+13e/1e4> Trace: c1811000 Trace: c010993a <system_call+3a/40> Code: c011f31b <kfree+18b/1a0> Code: c011f31b <kfree+18b/1a0> c7 05 00 00 00 movl $0x0,0x0 Code: c011f320 <kfree+190/1a0> 00 00 00 00 00 Code: c011f32b <kfree+19b/1a0> 83 c4 08 addl $0x8,%esp Code: c011f32e <kfree+19e/1a0> 5b popl %ebx Code: c011f32f <kfree+19f/1a0> 5e popl %esi Code: c011f330 <kfree_s> 5f popl %edi Code: c011f331 <kfree_s+1/1a4> 5d popl %ebp Code: c011f332 <kfree_s+2/1a4> 83 c4 08 addl $0x8,%esp
---
Mark Orr markorr@intersurf.com
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