diff options
| author |   Jeff Dike <jdike@addtoit.com> | 2007-12-01 12:16:30 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-03 08:13:17 -0800 |
| commit | ce3b642d42f36406112ab474c03d81c5941d9398 (patch) | |
| tree | 76a3c469248217a1d2e1648f749ad93864fe2856 /init/main.c | |
| parent | uml: after_sleep_interval should return something (diff) | |
| download | linux-dev-ce3b642d42f36406112ab474c03d81c5941d9398.tar.xz linux-dev-ce3b642d42f36406112ab474c03d81c5941d9398.zip | |
uml: work around host tcsetattr bug
Under the conditions that UML uses it, tcgetattr is guaranteed to return
-EINTR when the console is attached to /dev/ptmx, making generic_console_write
hang because it loops, calling tcgetattr until it succeeds. This is a host
bug - see http://marc.info/?l=linux-kernel&m=119618990807182&w=2 for the
details.
This patch works around it by blocking SIGIO while the terminal attributes are
being fiddled.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init/main.c')
0 files changed, 0 insertions, 0 deletions