Messages in this thread | | | Date | Thu, 26 Nov 2009 18:25:24 +0100 | From | Oleg Nesterov <> | Subject | Re: powerpc: fork && stepping (Was: [RFC,PATCH 0/14] utrace/ptrace) |
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On 11/26, Oleg Nesterov wrote: > > On 11/26, Ananth N Mavinakayanahalli wrote: > > > > step-fork: step-fork.c:56: handler_fail: Assertion `0' failed. > > /bin/sh: line 5: 17325 Aborted ${dir}$tst > > FAIL: step-fork > > Good to know, thanks again Ananth. > > I'll take a look. Since I know nothing about powerpc, I can't > promise the quick fix ;) > > The bug was found by code inspection, but the fix is not trivial > because it depends on arch/, and it turns out the arch-independent > fix in > > ptrace-copy_process-should-disable-stepping.patch > http://marc.info/?l=linux-mm-commits&m=125789789322573 > > doesn't work.
Just noticed the test-case fails in handler_fail(). Most probably this means it is killed by SIGALRM because either parent or child hang in wait(). Perhaps we have another (ppc specific?) bug, but currently I do not understand how this is possible, this should not be arch-dependent.
Oleg.
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