From cd2ee4a30cc0775d8b54e5b958613361a7cacfec Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Thu, 5 May 2005 16:15:32 -0700 Subject: [PATCH] uml: Fix SIGWINCH relaying 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/skas/process.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch/um/kernel/skas') diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c index c0b30515dfb..4dc13bc8cfd 100644 --- a/arch/um/kernel/skas/process.c +++ b/arch/um/kernel/skas/process.c @@ -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) -- cgit v1.2.3-70-g09d2