Re: [PATCH] Fix SIGSTOP locking issue in -rt

* Paul E. McKenney <[email protected]> wrote:

> Hello!
> 
> The following patch fixes a locking issue in -rt signals, where the 
> job-control signals drop sighand_lock momentarily during signal 
> handling. This interacts badly with the RCU-ification of unicast 
> signal delivery. The fix is simply to acquire tasklist_lock for 
> job-control signals, since these typically do not have stringent 
> scalability or latency requirements.

thanks, applied - will show up in -rt3.

	Ingo
-
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/

---

• References:
  • [PATCH] Fix SIGSTOP locking issue in -rt
    • From: "Paul E. McKenney" <[email protected]>

• Prev by Date: Re: [PATCH 1/2] slob: move kstrdup to lib/string.c
• Next by Date: Re: [PATCH] additional -rt RCU usage fixes
• Previous by thread: [PATCH] Fix SIGSTOP locking issue in -rt
• Next by thread: Realtime-preempt performs worse for many threads?
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]