lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] uml: Fix SIGWINCH relaying

Browse Source 
This makes SIGWINCH work again, and fixes a couple of SIGWINCH-associated
crashes.  First, the sigio thread disables SIGWINCH because all hell breaks
loose if it ever gets one and tries to call the signal handling code.  Second,
there was a problem with deferencing tty structs after they were freed.  The
SIGWINCH support for a tty wasn't being turned off or freed after the tty went
away.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike
2005-05-05 16:15:32 -07:00
committed by Linus Torvalds
parent c578455a3e
commit cd2ee4a30c
8 changed files with 55 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
arch/um/kernel/skas/process.c
View File

@@ -28,10 +28,11 @@
#include "chan_user.h"
#include "signal_user.h"
#include "registers.h"
#include "process.h"
int is_skas_winch(int pid, int fd, void *data)
{
if(pid != os_getpid())
if(pid != os_getpgrp())
return(0);
register_winch_irq(-1, fd, -1, data);
@@ -259,6 +260,10 @@ int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr)
sigjmp_buf **switch_buf = switch_buf_ptr;
int n;
set_handler(SIGWINCH, (__sighandler_t) sig_handler,
SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGALRM,
SIGVTALRM, -1);
*fork_buf_ptr = &initial_jmpbuf;
n = sigsetjmp(initial_jmpbuf, 1);
if(n == 0)