Kawai, Hidehiro <[EMAIL PROTECTED]> wrote:
> Is coredump_setting_sem a global semaphore? If so, it prevents concurrent
> core dumping.
No, it doesn't. Look again:
int do_coredump(long signr, int exit_code, struct pt_regs * regs)
{
<setup vars>
>>>> down_read(&coredump_settings_sem);
> Additionally, while some process is dumped, writing to
> coredump_omit_anon_shared of unrelated process will be blocked.
Yes, but that's probably reasonable. How likely (a) is a process to coredump,
and (b) is a coredump to occur simultaneously with someone altering their
settings?
David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
