Messages in this thread | | | From | KOSAKI Motohiro <> | Subject | Re: 2.6.36-rc5-mmotm0928 BUG while trying to ptrace a process | Date | Mon, 18 Oct 2010 11:01:18 +0900 (JST) |
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> On Mon, Oct 18, 2010 at 10:28:43AM +0900, KOSAKI Motohiro wrote: > > > On Wed, 2010-10-06 at 05:32 -0400, Valdis.Kletnieks@vt.edu wrote: > > > > Dell Latitude E6500, Intel Core2 Duo P8700 CPU. > > > > > > > > Have seen this three times now while trying to attach gdb to a hung Firefox > > > > process. > > > > > > > > [20669.480674] BUG: unable to handle kernel NULL pointer dereference at 0000000000000100 > > > > [20669.480682] IP: [<ffffffff810b8275>] __reserve_bp_slot+0x56/0x17d > > > > > > Known issue I think, Frederic was looking into curing this. > > > > > > Frederic, what's the current status of that? > > > > mmotm1014 seems still have this issue. Frederic, can you please tell us > > current status if you are tracking this issue? > > > Peter has a pending queue for .37 which includes: > > [RFC][PATCH 3/7] perf, hw_breakpoint: Fix crash in hw_breakpoint creation > > This patch should fix the issue (it depends on others in the queue). > > What is mmotm1014 BTW? Because you should see this bug only in a tree > that has tip:/perf/core merged inside, like linux-next.
mmotm is (usually) linux-next + akpm fixes. if a change of tip is exported to linux-next, it is visible from mmotm tester :)
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