Messages in this thread | | | Date | Tue, 09 Nov 2010 12:35:13 +0530 | From | Suresh Jayaraman <> | Subject | Re: 2.6.37-rc1 kmemleak warnings when saving a file over cifs. |
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On 11/09/2010 11:31 AM, Andrew Hendry wrote: > The server is a qnap NAS, running linux 2.6.24
> On Tue, Nov 9, 2010 at 3:12 PM, Steve French <smfrench@gmail.com> wrote: >> On Mon, Nov 8, 2010 at 6:13 PM, Andrew Hendry <andrew.hendry@gmail.com> wrote: >>> Have just noticed these in the past few days, now running 2.6.37-rc1+ >>> Seems to be 1 logged per file save when using a text file with gedit over cifs. >> >> Can you tell the called function in cifs_setattr_unix vs. cifs_setattr_nounix >> (the former will usually be called when the server is Samba, the latter >> when the server is Windows or NetApp). �What is the server type? >> >>> unreferenced object 0xffff88022ee08b40 (size 32): >>> �comm "gedit", pid 2524, jiffies 4300160388 (age 2633.655s) >>> �hex dump (first 32 bytes): >>> � �5c 2e 67 6f 75 74 70 75 74 73 74 72 65 61 6d 2d �\.goutputstream- >>> � �35 42 41 53 4c 56 00 de 09 00 00 00 2c 26 78 ee �5BASLV......,&x. >>> �backtrace: >>> � �[<ffffffff81504a4d>] kmemleak_alloc+0x2d/0x60 >>> � �[<ffffffff81136e13>] __kmalloc+0xe3/0x1d0 >>> � �[<ffffffffa0313db0>] build_path_from_dentry+0xf0/0x230 [cifs] >>> � �[<ffffffffa031ae1e>] cifs_setattr+0x9e/0x770 [cifs] >>> � �[<ffffffff8115fe90>] notify_change+0x170/0x2e0 >>> � �[<ffffffff81145ceb>] sys_fchmod+0x10b/0x140 >>> � �[<ffffffff8100c172>] system_call_fastpath+0x16/0x1b >>> � �[<ffffffffffffffff>] 0xffffffffffffffff >>
Are you using the mount option 'nounix'? I spotted a memleak in the nounix code path introduced by a recent patch and proposed a fix here:
http://thread.gmane.org/gmane.linux.kernel.cifs/1549
Does this fix the leak for you?
-- Suresh Jayaraman -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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