2.1.111 fix for debugger ptrace(PTRACE_ATTACH, ...) side-effects

Eric PAIRE (e.paire@opengroup.org)
Wed, 29 Jul 1998 16:34:58 +0200

Hi Linus,

As part of my development of gdb for multithreaded applications, I have
found bugs in the way the Linux kernel manages processes dynamicly attached
by a debugger.

The summary of the bugs, the SMP-safe fix explanation and the patch file
are all available at http://www.gr.opengroup.org/java/jdk/linux/kernel1.htm

Best regards,
P.S. The patch file contains the fix against a clean 2.1.111
P.S.2 I have just seen that the 2.1.112 is out (and that a cleaner 2.1.113
is about to be available :-) If you want me to adapt the fix for
2.1.113 and test it on my 4-way SMP, just let me know. Right now,
it works correctly on 2.1.111.
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ Eric PAIRE
Email : e.paire@gr.opengroup.org | THE Open GROUP - Grenoble Research
Phone : +33 (0) 476 63 48 71 | 2, avenue de Vignate
Fax : +33 (0) 476 51 05 32 | F-38610 Gieres FRANCE

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