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[Bug runtime/12141] Segmentation fault in apps probed by libstdc++ i686
- From: "jistone at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: Mon, 25 Oct 2010 16:15:16 +0000
- Subject: [Bug runtime/12141] Segmentation fault in apps probed by libstdc++ i686
- Auto-submitted: auto-generated
- References: <bug-12141-1110@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=12141
--- Comment #2 from Josh Stone <jistone at redhat dot com> 2010-10-25 16:14:59 UTC ---
(In reply to comment #1)
> I can't reproduce this on x86-64.
Well, I did say i686 only...
> What does -DDEBUG_SYMBOLS=2 -DDEBUG_UPROBES -DDEBUG_TASK_FINDER_VMA offer?
Let me know if you want the entire dump, but AFAICS here's the relevant
excerpt:
> __stp_call_mmap_callbacks:611: pid 1505, a/l/o/p/path 0x15a000 0xed000 0x0 r-xp /usr/lib/libstdc++.so.6.0.13
> stap_uprobe_mmap_found:274: +mmap R-X pid 1505 path /usr/lib/libstdc++.so.6.0.13 addr 0015a000 length 970752 offset (null) stf e1d7bd88 e1d7bd88 path /usr/lib/libstdc++.so.6.0.13
> stap_uprobe_change_plus:67: +uprobe spec 0 idx 0 process stap[1505] addr 00209200 pp process("/usr/lib/libstdc++.so.6.0.13").function("operator new@../../../../libstdc++-v3/libsupc++/new_opnt.cc:37")
> stap_uprobe_change_plus:67: +uprobe spec 1 idx 1 process stap[1505] addr 00209150 pp process("/usr/lib/libstdc++.so.6.0.13").function("operator new@../../../../libstdc++-v3/libsupc++/new_op.cc:45")
> __stp_utrace_task_finder_target_syscall_exit:1435: tsk 1505 found mmap2(0x0), returned 0x23b000
> __stp_call_mmap_callbacks:611: pid 1505, a/l/o/p/path 0x23b000 0x6000 0xe0000 rw-p /usr/lib/libstdc++.so.6.0.13
> stap_uprobe_mmap_found:279: +mmap RW- pid 1505 path /usr/lib/libstdc++.so.6.0.13 addr 0023b000 length 24576 offset 000e0000 stf e1d7bd88 e1d7bd88 path /usr/lib/libstdc++.so.6.0.13
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