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authorMichael Chastain <mec@google.com>2004-07-27 00:01:17 +0000
committerMichael Chastain <mec@google.com>2004-07-27 00:01:17 +0000
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parentdf66ddfe36ab4535066efd233fc03320470019aa (diff)
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2004-07-26 Michael Chastain <mec.gnu@mindspring.com>
Document PR threads/1650. * PROBLEMS (Threads): Document problem with many threads
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@@ -121,3 +121,20 @@ gdb/1505: [regression] gdb prints a bad backtrace for a thread
When backtracing a thread, gdb does not stop when it reaches the
outermost frame, instead continuing until it hits garbage. This is
sensitive to the operating system and thread library.
+
+*** Threads
+
+threads/1650: manythreads.exp
+
+A program which creates many threads which exit very quickly (hundreds
+of thousands of threads in the test program) can cause gdb to generate
+an internal error. The internal error often looks like:
+
+ lin-lwp.c:744: internal-error: stop_callback: Assertion `lp->status == 0' failed.
+ A problem internal to GDB has been detected.
+ further debugging may prove unreliable.
+ Quit this debugging session? (y or n)
+
+This has been observed on native i686-pc-linux-gnu with linuxthreads,
+the old threading model. With NPTL threads, this internal error has not
+been observed.