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Date: Tue, 4 Oct 2016 12:19:48 -0700 From: Tony Lindgren <tony@...mide.com> To: Theodore Ts'o <tytso@....edu>, Al Viro <viro@...IV.linux.org.uk>, Jan Kara <jack@...e.cz>, Eric Biggers <ebiggers@...gle.com>, Andreas Dilger <adilger@...ger.ca>, Jaegeuk Kim <jaegeuk@...nel.org>, linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org Subject: Re: Regression in next with ext4 oops * Theodore Ts'o <tytso@....edu> [161004 12:08]: > On Tue, Oct 04, 2016 at 03:59:15PM +0100, Al Viro wrote: > > Jan is wrong - we do have per-struct-file serialization for getdents() > > et.al. It might be a race between getdents() on *different* struct > > file for the same directory, but ->private_data is not a problem. > > So the rb_insert_color() OOPS seems to indicate that the rbtree has > gotten corrupted, and it hangs off of private_data. Yes so it seems.. > And I've just checked the ext4.git tree and I can't see any changes in > the dev branch (which I was just about to push to Linus) that would > impact the readdir path for non-encrypted directories. So if it's a > race on ->private_data I'm not sure what else might be going wrong. > > Hmm... Tony, what version was the last good version where it wouldn't > reproduce for you? v4.7? Does it reproduce for you on v4.8? Well I just found it's caused by my commit d776fc86b82f ("wlcore: sdio: Populate config firmware data") and has nothing to do with ext4, see the mail I just posted. > Also, would you mind seeing if you can reproduce it on the dev > branch of the ext4 git tree? > > git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev Seems like there's nothing wrong with ext4, this is probably some memory corruption issue. Thanks everybody for help and sorry for the false ext4 alert. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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