Andrew,

Thanks for the feedback. Please do let us know if you run into more
problems. I'll put this warning on my list of things to check into when I
get time.

Thanks,
Elaine

-----Original Message-----
From: Andrew Savchenko [mailto:[email protected]] 
Sent: Wednesday, October 03, 2012 2:40 PM
To: Elaine Quarles
Cc: [email protected]
Subject: Re: [Pvfs2-users] Invalid Objects

Hello, Elaine

On Fri, 28 Sep 2012 12:44:51 -0400 Elaine Quarles wrote:
> Andrew,
> 
> A fix for this deadlock problem has been checked into the stable 
> branch (and will soon be checked into trunk as well). A patch is attached.

Thanks, it seems to work fine after some preliminary testing.
I use stable branch from svn revision 9510.

However, I still get these warnings on mkdir operations:

Oct 03 22:14:02 [kernel] ------------[ cut here ]------------

Oct 03 22:14:02 [kernel] WARNING: at fs/dcache.c:1291 d_set_d_op+0x97/0xb0()

Oct 03 22:14:02 [kernel] Hardware name: ProLiant BL2x220c G5

Oct 03 22:14:02 [kernel] Modules linked in: pvfs2(O) md5 nfsd 8021q garp stp
llc ipt_REJECT ipt_LOG xt_pkttype xt_limit xt_tcpudp xt_hashlimit xt_recent
xt_conntrack iptable_ filter iptable_mangle iptable_nat nf_nat
nf_conntrack_ipv4 nf_defrag_ipv4 xt_NOTRACK iptable_raw ip_tables x_tables
nf_conntrack_ftp nf_conntrack [last unloaded: microcode]  
Oct 03 22:14:02 [kernel] Pid: 17042, comm: tar Tainted: G        W  O
3.2.29-unicluster #4

Oct 03 22:14:02 [kernel] Call Trace:

Oct 03 22:14:02 [kernel]  [<ffffffff81033d5b>] ?
warn_slowpath_common+0x7b/0xc0

Oct 03 22:14:02 [kernel]  [<ffffffff810d54e7>] ? d_set_d_op+0x97/0xb0

Oct 03 22:14:02 [kernel]  [<ffffffffa00f18fe>] ?
pvfs2_create_entry+0x51e/0x860 [pvfs2]

Oct 03 22:14:02 [kernel]  [<ffffffffa00f8094>] ?
pvfs2_get_custom_inode_common+0xfb4/0x1a50 [pvfs2]

Oct 03 22:14:02 [kernel]  [<ffffffff810cca5b>] ? vfs_mkdir+0x7b/0xc0

Oct 03 22:14:02 [kernel]  [<ffffffff810d03dc>] ? sys_mkdirat+0xbc/0xd0

Oct 03 22:14:02 [kernel]  [<ffffffff81409c7b>] ?
system_call_fastpath+0x16/0x1b

Oct 03 22:14:02 [kernel] ---[ end trace 8531668dbe98933b ]---

I'm unsure if it is safe to operate under such conditions. Usually slowpath
warning is a harbinger of a lock condition.

I'll keep you in touch if I'll have any faults with this issue.

Best regards,
Andrew Savchenko

_______________________________________________
Pvfs2-users mailing list
[email protected]
http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users

Reply via email to