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[Bug runtime/14348] Systemtap systemtap.base/buildid.exp hangs on F17 machines


http://sourceware.org/bugzilla/show_bug.cgi?id=14348

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fche at redhat dot com

--- Comment #3 from Frank Ch. Eigler <fche at redhat dot com> 2012-07-17 19:18:24 UTC ---
>From that last attachment:

[  283.666010]  <EOI> 
[  283.666010]  [<ffffffff812c6b48>] ? __rb_rotate_right+0x8/0x90
[  283.666010]  [<ffffffff812c6ce0>] ? rb_insert_color+0x110/0x150
[  283.666010]  [<ffffffff8114b140>] __vma_link_rb+0x30/0x40
[  283.666010]  [<ffffffff8114b1c8>] vma_link+0x78/0xe0
[  283.666010]  [<ffffffff8114ce2d>] mmap_region+0x56d/0x630
[  283.666010]  [<ffffffff8114d23d>] do_mmap_pgoff+0x34d/0x3a0
[  283.666010]  [<ffffffff8114d4ed>] do_mmap+0x2d/0x40
[  283.666010]  [<ffffffff815ed6aa>] elf_map+0x119/0x14a
[  283.666010]  [<ffffffff811d04a9>] load_elf_binary+0x5e9/0x18f0
[  283.666010]  [<ffffffff81186eb5>] ? copy_strings.isra.24+0x2b5/0x300
[  283.666010]  [<ffffffff811cfec0>] ? notesize.isra.6+0x30/0x30
[  283.666010]  [<ffffffff811871f7>] search_binary_handler+0x117/0x320
[  283.666010]  [<ffffffff81188734>] do_execve_common.isra.28+0x434/0x500
[  283.666010]  [<ffffffff8118881b>] do_execve+0x1b/0x20
[  283.666010]  [<ffffffff8101c3c7>] sys_execve+0x47/0x70
[  283.666010]  [<ffffffff815fcdec>] stub_execve+0x6c/0xc0

This looks very familiar; it resembles the kinds of failures I was wrestling
with just before releasing 1.8, when testing linux-next kernels.  The apparent
hang appeared to be corruption of the rbtree data structure, to give it loops
where there ought be none.

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