Revision 0f7e663dea7f0e22f3b2d07156c5e9d2e8656610 authored by Bodo Stroesser on 07 May 2005, 04:30:54 UTC, committed by Linus Torvalds on 07 May 2005, 05:09:30 UTC
tt-mode closes switch_pipes in exit_thread_tt and kills processes in switch_to_tt, if the exit_state is EXIT_DEAD or EXIT_ZOMBIE. In very rare cases the exiting process can be scheduled out after having set exit_state and closed switch_pipes (from release_task it calls proc_pid_flush, which might sleep). If this process is to be restarted, UML failes in switch_to_tt with: write of switch_pipe failed, err = 9 We fix this by closing switch_pipes not in exit_thread_tt, but later in release_thread_tt. Additionally, we set switch_pipe[0] = 0 after closing. switch_to_tt must not kill "from" process depending on its exit_state, but must kill it after release_thread was processed only, so it examines switch_pipe[0] for its decision. Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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File | Mode | Size |
---|---|---|
Makefile | -rw-r--r-- | 257 bytes |
af_x25.c | -rw-r--r-- | 31.6 KB |
sysctl_net_x25.c | -rw-r--r-- | 2.5 KB |
x25_dev.c | -rw-r--r-- | 4.1 KB |
x25_facilities.c | -rw-r--r-- | 5.8 KB |
x25_in.c | -rw-r--r-- | 8.7 KB |
x25_link.c | -rw-r--r-- | 8.7 KB |
x25_out.c | -rw-r--r-- | 5.2 KB |
x25_proc.c | -rw-r--r-- | 5.6 KB |
x25_route.c | -rw-r--r-- | 4.7 KB |
x25_subr.c | -rw-r--r-- | 9.1 KB |
x25_timer.c | -rw-r--r-- | 3.8 KB |
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