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fix general protection fault caused by SIGALARM

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This commit is contained in:
Tomoki Shirasawa
2013-12-16 13:45:45 +09:00
parent 8e4cbfeea1
commit 96576aaee7
3 changed files with 75 additions and 13 deletions
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22
kernel/syscall.c
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@@ -108,7 +108,8 @@ static void send_syscall(struct syscall_request *req)
struct ihk_ikc_channel_desc *syscall_channel;
int cpu;
if(req->number == __NR_exit_group){
if(req->number == __NR_exit_group ||
req->number == __NR_kill){ // interrupt syscall
extern int num_processors;
scp = &get_cpu_local_var(0)->scp2;
@@ -160,7 +161,8 @@ int do_syscall(struct syscall_request *req, ihk_mc_user_context_t *ctx)
ihk_mc_get_processor_id(),
req->number);
if(req->number == __NR_exit_group){
if(req->number == __NR_exit_group ||
req->number == __NR_kill){ // interrupt syscall
scp = &get_cpu_local_var(0)->scp2;
}
else{
@@ -250,6 +252,22 @@ terminate(int rc, int sig, ihk_mc_user_context_t *ctx)
schedule();
}
void
interrupt_syscall()
{
ihk_mc_user_context_t ctx;
long lerror;
ihk_mc_syscall_arg0(&ctx) = ihk_mc_get_processor_id();
ihk_mc_syscall_arg1(&ctx) = 0;
lerror = syscall_generic_forwarding(__NR_kill, &ctx);
if (lerror) {
kprintf("clear_host_pte failed. %ld\n", lerror);
}
return;
}
SYSCALL_DECLARE(exit_group)
{
#if 0