Re: [RFC, PATCH] locks: remove posix deadlock detection

> Bzzt.  You get a false deadlock with multiple threads like so:
> 
> Thread A of task B takes lock 1
> Thread C of task D takes lock 2
> Thread C of task D blocks on lock 1
> Thread E of task B blocks on lock 2

The spec and SYSV certainly ignore threading in this situation and you
know that perfectly well (or did in 2004)
-
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/

---

• Follow-Ups:
  • Re: [RFC, PATCH] locks: remove posix deadlock detection
    • From: Matthew Wilcox <[email protected]>

• References:
  • [RFC][PATCH] Fix hang in posix_locks_deadlock()
    • From: "George G. Davis" <[email protected]>
  • Re: [RFC][PATCH] Fix hang in posix_locks_deadlock()
    • From: "George G. Davis" <[email protected]>
  • Re: [RFC][PATCH] Fix hang in posix_locks_deadlock()
    • From: "J. Bruce Fields" <[email protected]>
  • Re: [RFC][PATCH] Fix hang in posix_locks_deadlock()
    • From: "J. Bruce Fields" <[email protected]>
  • [PATCH] locks: fix possible infinite loop in posix deadlock detection
    • From: "J. Bruce Fields" <[email protected]>
  • [RFC, PATCH] locks: remove posix deadlock detection
    • From: "J. Bruce Fields" <[email protected]>
  • Re: [RFC, PATCH] locks: remove posix deadlock detection
    • From: Matthew Wilcox <[email protected]>
  • Re: [RFC, PATCH] locks: remove posix deadlock detection
    • From: Alan Cox <[email protected]>
  • Re: [RFC, PATCH] locks: remove posix deadlock detection
    • From: Matthew Wilcox <[email protected]>
  • Re: [RFC, PATCH] locks: remove posix deadlock detection
    • From: Trond Myklebust <[email protected]>
  • Re: [RFC, PATCH] locks: remove posix deadlock detection
    • From: Matthew Wilcox <[email protected]>

• Prev by Date: Re: [PATCH] sysctl: fix token-ring procname
• Next by Date: Re: [Bugme-new] [Bug 9217] New: CONFIG_CMDLINE doesn't pass to kernel
• Previous by thread: Re: [RFC, PATCH] locks: remove posix deadlock detection
• Next by thread: Re: [RFC, PATCH] locks: remove posix deadlock detection
• 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]