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SubjectRe: 2.6.12-rc1-bk2+PREEMPT_BKL: Oops at serio_interrupt
Date
On Wednesday 30 March 2005 10:30, Dmitry Torokhov wrote:
> On Tuesday 29 March 2005 14:49, Alexey Dobriyan wrote:
> > According to vmlinux, c0202947 is at:
> >
> > c020293e <serport_ldisc_write_wakeup>:
>
> Could you please try this one instead? Thanks!

Still dies in serport_ldisc_write_wakeup (doesn't matter how to trigger)
via:

Unable to handle kernel NULL pointer dereference at virtual address 00000068
EIP: c020294f
tty_wakeup
uart_close
wait_for_completion
release_dev

If you want me to be more specific, wait until I figure out how to print
only parts of oops (to fit them on console).
============================================================================
c0202930 <serport_ldisc_write_wakeup>:
c0202930: push %esi
c0202931: push %ebx
c0202932: mov 0x978(%eax),%ebx
c0202938: pushf
c0202939: pop %esi
c020293a: cli
c020293b: mov $0x1,%eax
c0202940: call c010ecaf <add_preempt_count>
c0202945: mov 0x14(%ebx),%eax
c0202948: test $0x4,%al
c020294a: jne c0202956 <serport_ldisc_write_wakeup+0x26>
c020294c: mov 0xc(%ebx),%eax
c020294f: ==>> mov 0x68(%eax),%edx <<==
c0202952: test %edx,%edx
c0202954: jne c0202973 <serport_ldisc_write_wakeup+0x43>
c0202956: push %esi
c0202957: popf
c0202958: mov $0x1,%eax
c020295d: call c010ece1 <sub_preempt_count>
c0202962: mov $0xfffff000,%eax
c0202967: and %esp,%eax
c0202969: mov 0x8(%eax),%eax
c020296c: test $0x8,%al
c020296e: jne c0202984 <serport_ldisc_write_wakeup+0x54>
c0202970: pop %ebx
c0202971: pop %esi
c0202972: ret
c0202973: mov 0x10(%edx),%edx
c0202976: test %edx,%edx
c0202978: je c0202956 <serport_ldisc_write_wakeup+0x26>
c020297a: lea 0x0(%esi),%esi
c0202980: call *%edx
c0202982: jmp c0202956 <serport_ldisc_write_wakeup+0x26>
c0202984: pop %ebx
c0202985: pop %esi
c0202986: jmp c029ad16 <preempt_schedule>
-
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