Red Hat Bugzilla – Bug 209634
Error attaching to process in 'T' state
Last modified: 2007-11-30 17:11:45 EST
+++ This bug was initially created as a clone of Bug #209521 +++
Attaching to a process in 'T' (Stopped; after kill -STOP) state cases assertion
failure for gdb-6.5. It has been fixed in RH gdb-6.5-11.fc6. The bug is present
Problem was not verified for 'frysk'. I have been asked to clone this Bug for
frysk by Andrew Cagney.
$ stty sane &
$ # newline
+ Stopped stty sane
$ gdb stty 22216
GNU gdb Red Hat Linux (6.5-8.fc6rh)
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This GDB was configured as "i386-redhat-linux-gnu"...(no debugging symbols found)
Using host libthread_db library "/lib/libthread_db.so.1".
Attaching to program: /bin/stty, process 22216
../../gdb/linux-nat.c:1057: internal-error: linux_nat_attach: Assertion `pid ==
GET_PID (inferior_ptid) && WIFSTOPPED (status) && WSTOPSIG (status) == SIGSTOP'
A problem internal to GDB has been detected,
It is already fixed in gdb-6.5-9.fc6 which will be present in RawHide after FC6
gets released. FC6 will contain "gdb-6.5-8.fc6". Bug is present even upstream.
'T' state is a SIGSTOP from some SIGTTIN or SIGTTOU due to stty(1) accessing
console no longer having access to as a background process.
Works for frysk, as of:
* LinuxTask.java (sendAttach): Manually tell the thread that the process
has been attached Fixes 3316.
* TestProcStopped.java: Added license.
(testStoppedAckDaemon): Changed to use stopped.
(MyTester): Changed to stop eventloop after an attach.