[haiku-bugs] Re: [Haiku] #5138: PANIC: remove page 0x82868278 from cache 0xd19e7680: page still has mappings!
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Sat, 09 Jan 2010 14:49:26 -0000
#5138: PANIC: remove page 0x82868278 from cache 0xd19e7680: page still has
mappings!
---------------------------+------------------------------------------------
Reporter: mmadia | Owner: bonefish
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/Development
Keywords: | Blockedby:
Platform: All | Blocking: 5216
---------------------------+------------------------------------------------
Comment(by bonefish):
Replying to [comment:15 mmadia]:
> Replying to [comment:12 bonefish]:
> > Maybe Matt can confirm that the panic() has become more easy to
reproduce with a current revision.
> >
> > I'm hoping that further optimization might make the bug even more easy
to reproduce, so that someone (*duck* :-)) can tackle it. Especially that
the system freezes and doesn't enter KDL is extremely annoying.
>
> Yup, one build cycle of `jam -aqj3 @alpha-raw` in r34965-gcc2hybrid was
enough to generate it. The uptime was between 20~30 minutes. I'll build
the image with just {{{
> # define ENABLE_TRACING 1
> # define MAX_TRACE_SIZE (300 * 1024 * 1024)
> #define SYSCALL_TRACING_IGNORE_KTRACE_OUTPUT 1
> #define VM_CACHE_TRACING 2
> }}}
Great! So if you can reproduce the bug with VM cache tracing enabled, now,
it would be great, if you found the time to track it down as described in
[comment:5 comment 5]. Even better, if it could be done with
VM_CACHE_TRACING_STACK_TRACE enabled.
--
Ticket URL: <http://dev.haiku-os.org/ticket/5138#comment:17>
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