On 06-Feb-01 Jim Bloom wrote:
> Which kernel do you want me to try this with? I have tried two
> different kernels with two different errors. (Both have been sent at
> different times in the past couple days.) The registers listed here
> from the second kernel (with WITNESS, INVARIANTS, INVARIANT_SUPPORT,
> MUTEX_DEBUG). As such the addresses disagree (sw1b has 8 more bytes for
> invariants), but the text segment was correct.
You'll have to turn off WITNESS to get it to die in cpu_switch(), but you'll
want to leave the others on for now.
> Without debug, I get the trap 9. With debug, I get a trap 12
> immediately followed by a panic with mutex shced lock recursion.
>
> I rebuilt the kernel with out the debugging and check the state of
> things. The code is correct and the esi register had the expected
> value.
Hmmmmmmmm. Ok, try with debugging minus WITNESS (and you don't want
MUTEX_DEBUG, that slows things down a _lot_). Then see if %esi is
still 0x100 instead of 0x20. If so, then check the instructions to make sure
they aren't hosed.
> P.S. I am hitting the same problem Robert Watson mentioned. I don't
> have room for three kernels on the machine.
Yes. :( The default / size for -current is not very good, as development boxes
need more room on / than production boxes.
--
John Baldwin <[EMAIL PROTECTED]> -- http://www.FreeBSD.org/~jhb/
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