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| author | Richard Weinberger <richard@nod.at> | 2013-08-18 15:30:08 +0400 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2013-09-07 12:56:58 +0400 |
| commit | 91d44ff860a9e9c0db81a89cbc24fa31fbd8e6d3 (patch) | |
| tree | bb14601ab3afbcec3cb8d7d0f207d09cfc792268 /arch/um/os-Linux/aio.c | |
| parent | bc1d72e73be63a7c4a07eb10cf51e91f20bf6076 (diff) | |
| download | linux-91d44ff860a9e9c0db81a89cbc24fa31fbd8e6d3.tar.xz | |
um: Cleanup SIGTERM handling
Richard reported that some UML processes survive if the UML
main process receives a SIGTERM.
This issue was caused by a wrongly placed signal(SIGTERM, SIG_DFL)
in init_new_thread_signals().
It disabled the UML exit handler accidently for some processes.
The correct solution is to disable the fatal handler for all
UML helper threads/processes.
Such that last_ditch_exit() does not get called multiple times
and all processes can exit due to SIGTERM.
Reported-and-tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/os-Linux/aio.c')
| -rw-r--r-- | arch/um/os-Linux/aio.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/um/os-Linux/aio.c b/arch/um/os-Linux/aio.c index 3a6bc2af0961..014eb35fd13b 100644 --- a/arch/um/os-Linux/aio.c +++ b/arch/um/os-Linux/aio.c @@ -104,8 +104,7 @@ static int aio_thread(void *arg) struct io_event event; int err, n, reply_fd; - signal(SIGWINCH, SIG_IGN); - + os_fix_helper_signals(); while (1) { n = io_getevents(ctx, 1, 1, &event, NULL); if (n < 0) { @@ -173,7 +172,7 @@ static int not_aio_thread(void *arg) struct aio_thread_reply reply; int err; - signal(SIGWINCH, SIG_IGN); + os_fix_helper_signals(); while (1) { err = read(aio_req_fd_r, &req, sizeof(req)); if (err != sizeof(req)) { |