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SubjectRe: 2.6.38-rc3 regression on parisc: segfaults
On Fri, 04 Feb 2011, Meelis Roos wrote:

> 2363 clone( <unfinished ...>
> 2349 <... futex resumed> ) = 1
> 2363 <... clone resumed> child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x460df4a8) = 2372
> 2349 --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> 2372 rt_sigaction(SIGPIPE, {SIG_DFL, [], SA_RESTART}, <unfinished ...>
> 2349 write(1, "\33[56;1H\33[34h\33[?25h", 18 <unfinished ...>
>
> Something futex-related. Full log temprarilty available at
> http://www.cs.ut.ee/~mroos/aptitude-strace.txt

This is possibly the infamous COW bug.

> gdb does not seem to work well:

I think the segv is in the dynamic loader. Try gdb on dynamic loader
and aptitude as run argument. Also suggest adding /usr/lib/debug to
LD_LIBRARY_PATH.

Dave
--
J. David Anglin dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada (613) 990-0752 (FAX: 952-6602)


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