Re: post 2.6.7 BK change breaks Java?

[Jesper Juhl]

On Sun, 11 Jul 2004, Brian Gerst wrote:

> Brian Gerst wrote:
> > Jesper Juhl wrote:
> >
> >> On Sun, 11 Jul 2004, Jesper Juhl wrote:
> >>
> >>
> >>> On Sun, 11 Jul 2004, Grzegorz Kulewski wrote:
> >>>
> >>>
> >>>> On Sun, 11 Jul 2004, Jesper Juhl wrote:
> >>>>
> >>>>
> >>>>> On Fri, 9 Jul 2004, Jesper Juhl wrote:
> >>>>>
> >>>>>
> >>>>>> On Fri, 9 Jul 2004, Con Kolivas wrote:
> >>>>>>
> >>>>>>
> >>>>>>> but I suspect it's one of those possibly interfering. Looking at the
> >>>>>>> patches in question I have no idea how they could do it. I guess
> >>>>>>> if you
> >>>>>>> can try backing them out it would be helpful. Here are links to the
> >>>>>>> patches in question.
> >>>>>>> http://ck.kolivas.org/patches/2.6/2.6.7/2.6.7-ck5/split-out/1100_ip_tabl
> >>>>>>>
> >>>>>>> es.patch
> >>>>>>> http://ck.kolivas.org/patches/2.6/2.6.7/2.6.7-ck5/split-out/1105_CAN-200
> >>>>>>>
> >>>>>>> 4-0497.patch
> >>>>>>> http://ck.kolivas.org/patches/2.6/2.6.7/2.6.7-ck5/split-out/1110_proc.pa
> >>>>>>>
> >>>>>>> tch
> >>>>>>
> >>>>>>
> >>>>>> Thanks Con, I'll try playing with those tomorrow (got no time
> >>>>>> tonight),
> >>>>>> and report back.
> >>>>>>
> >>>>>
> >>>>> Ok, got them all 3 backed out of 2.6.7-mm7 , but that doesn't change a
> >>>>> thing. The JVM still dies when I try to run eclipse.
> >>>>
> >>>>
> >>>> I can run Eclipse without any problems on 2.6.7-bk20-ck5 + few other
> >>>> not
> >>>> related patches. Maybe try using non -mm? Try 2.6.7-bk20 and then try
> >>>> reverting some patches. Maybe there is some other problem in -mm that
> >>>> gives similar results?
> >>>>
> >>>
> >>> with plain 2.6.7-bk20 I see the issue, same with 2.6.7-mm7. Reverting
> >>> http://linux.bkbits.net:8080/linux-2.6/cset@xxxxxx from -mm7 fixes the
> >>> issue. I'm currently building 2.6.7-bk20 minus that cset and I'll report
> >>> back on the results of that in a few minutes.
> >>>
> >>
> >> 2.6.7-bk20 minus the cset works.
> >>
> >> Testing with 2.6.8-rc1 and backing out one or both of the changes in the
> >> cset I get these results :
> >> 2.6.8-rc1       - vanilla                                       -
> >> breaks Java
> >> 2.6.8-rc1-jju1  - both changes backed out                       - works
> >> 2.6.8-rc1-jju2  - only first change (sys_rt_sigsuspend) applied - works
> >> 2.6.8-rc1-jju3  - only second change (sys_sigaltstack) applied  -
> >> breaks Java
> >>
> >> --
> >> Jesper Juhl <juhl-lkml@xxxxxx>
> >
> >
> > Looks like a GCC (gcc version 3.4.1 20040702 (Red Hat Linux 3.4.1-2))
> > screwup:
> >
> > sys_sigaltstack:
> >         movl    4(%esp), %eax
> >         movl    8(%esp), %edx
> >         movl    56(%esp), %ecx
> >         jmp     do_sigaltstack
> >
> > The offsets should be 4 more, to account for the return address on the
> > stack.
>
> Nevermind, I should have looked more carefully.  The offsets are fine in
> my example.  What version of GCC are you using?
>
gcc 3.4.0

I got a patch from Linus yesterday that seems to fix it nicely on top of
2.6.8-rc1. I guess he has his reasons for not CC'ing it to the list, but
I've given him feedback on my testing of it, so I hope it'll surface as
soon as he's happy with it.

--
Jesper Juhl <juhl-lkml@xxxxxx>
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