O_DIRECT error, user space programming

Hi,
I got an:
*** glibc detected *** double free or corruption (!prev): 0x84c01000 ***
using O_DIRECT with threads: this error appends if I run several threads
wich are reading several files (opened with O_RDONLY|O_DIRECT) at the same
time.
The error doesn't appends if I open the files whithout O_DIRECT or if I
place a pthread_join after each thread call.
I'm sure that no double free is done.
kernel version: 2.6.17 SMP PREEMPT
glibc version: 2.3.6
filesystem: ext3
g++ used: g++ (GCC) 4.0.4 20060507 (prerelease) (Debian 4.0.3-3)
Does somebody knows the reasons of the error? There are limitation to use
O_DIRECT on a multithread application?
Thanks in advance for any help.
A.

ps. I can provide the source code code (135 lines of C++) if it is useful
to uinderstand better the problem


-
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/

---

• Prev by Date: Re: fs/9p/vfs_inode.c(406): remark #593: variable "sb" was set but never used
• Next by Date: Re: [PATCH -mm 3/5][AIO] - export good_sigevent()
• Previous by thread: [PATCH] ide_scsi: allow it to be used for non CD only
• Next by thread: [2.6.16-rc6-mm2 patch] make 8250_pnp serial driver work after suspend to ram
• 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]