unimore/kernel-hacking-2024-linux-steffo
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[PATCH] Fix suspend with traced tasks

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strace /bin/bash misbehaves after resume; this fixes it.

(akpm: it's scary calling refrigerator() in state TASK_TRACED, but it seems to
do the right thing).

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Pavel Machek 2006-03-31 02:30:06 -08:00 committed by Linus Torvalds
parent 1a75a3f068
commit 85b6bce365
2 changed files with 2 additions and 2 deletions
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3
kernel/power/process.c
View file

@ -26,8 +26,7 @@ static inline int freezeable(struct task_struct * p)
(p->flags & PF_NOFREEZE) ||
(p->exit_state == EXIT_ZOMBIE) ||
(p->exit_state == EXIT_DEAD) ||
(p->state == TASK_STOPPED) ||
(p->state == TASK_TRACED))
(p->state == TASK_STOPPED))
return 0;
return 1;
}

1
kernel/signal.c
View file

@ -1560,6 +1560,7 @@ static void ptrace_stop(int exit_code, int nostop_code, siginfo_t *info)
/* Let the debugger run. */
set_current_state(TASK_TRACED);
spin_unlock_irq(&current->sighand->siglock);
try_to_freeze();
read_lock(&tasklist_lock);
if (likely(current->ptrace & PT_PTRACED) &&
likely(current->parent != current->real_parent ||