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[[!meta title="GDB: attach"]]
[[!tag open_issue_gdb]]
# [[gdb_thread_ids]]
# IRC, freenode, #hurd, 2012-06-30
<braunr> hm, gdb isn't able to determine which thread is running when
attaching to a process
# IRC, freenode, #hurd, 2012-07-02
<braunr> woah, now that's a weird message !
<braunr> when using gdb on a hanged ext2fs :
<braunr> Pid 938 has an additional task suspend count of 1; clear it? (y or
n)
<braunr> when hanged, gdb thinks the target task is already being debugged
:/
<braunr> no wonder why it's completely stuck
<braunr> hm, the task_suspend might actually be the crash-dump-core server
attempting to create the core :/
<braunr> hm interesting, looks like a problem with the
diskfs_catch_exception macro
<pinotree> braunr: what's up with it?
<braunr> pinotree: it uses setjmp
<braunr> hm random corruptions :/
<braunr> definitely looks like a concurrency problem
# IRC, freenode, #hurd, 2012-05-23
<pinotree>
/build/buildd-gdb_7.4really-1-hurd-i386-UKStgK/gdb-7.4really/gdb/thread.c:72:
internal-error: inferior_thread: Assertion `tp' failed.
<pinotree> arg
<tschwinge> pinotree: Been doing anything "special"? Is it reproducible?
<pinotree> trying to debug something
<tschwinge> Indeed. ;-)
<pinotree> i'm not sure i'm doing anything special, just trying to attach a
process
<tschwinge> That is supposed to work.
<tschwinge> If the permission match.
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