From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sander Subject: Re: Unable to handle kernel NULL pointer dereference at virtual address 00000008 Date: Thu, 21 Jan 2010 09:57:36 +0100 Message-ID: <20100121085736.GB20543@cumulus> References: <20100121060710.GA5301@cumulus> <20100121083849.GA7790@mother.pipebreaker.pl> Reply-To: sander@humilis.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: Tomasz Torcz , linux-btrfs@vger.kernel.org Return-path: In-Reply-To: <20100121083849.GA7790@mother.pipebreaker.pl> List-ID: Hello Tomasz, Tomasz Torcz wrote (ao): > On Thu, Jan 21, 2010 at 07:07:10AM +0100, Sander wrote: > > [26678.568532] [] (btrfs_get_acl+0x60/0x250) from [] (btrfs_xattr_get_acl+0x10/0x70) > > [26678.577802] [] (btrfs_xattr_get_acl+0x10/0x70) from [] (generic_getxattr+0x78/0x7c) > > [26678.587243] [] (generic_getxattr+0x78/0x7c) from [] (vfs_getxattr+0x58/0x5c) > > [26678.596074] [] (vfs_getxattr+0x58/0x5c) from [] (getxattr+0xa4/0x11c) > > [26678.604298] [] (getxattr+0xa4/0x11c) from [] (sys_getxattr+0x44/0x58) > > [26678.612525] [] (sys_getxattr+0x44/0x58) from [] (ret_fast_syscall+0x0/0x28) > > Although your oops is in btrfs_get_acl(), you may need similar fix > as done for btrfs_set_acl() in this commit: > > http://git.kernel.org/?p=linux/kernel/git/mason/btrfs-unstable.git;a=commitdiff;h=a9cc71a60c29a09174bee2fcef8f924c529fd4b7 Thanks, that makes sense. Unfortunately I'm no kernel hacker so I can't provide a patch. I'm more than happy to test patches of course. With kind regards, Sander -- Humilis IT Services and Solutions http://www.humilis.net