[systemd-devel] BTRFS bug with parallel mounts?

Gustavo Sverzut Barbieri barbieri at profusion.mobi
Wed Nov 10 03:33:57 PST 2010


On Wednesday, November 10, 2010, Gustavo Sverzut Barbieri
<barbieri at profusion.mobi> wrote:
> Hi all,
>
> First, I'm not typing much or send the kernel oops since I'm at a
> phone without access to my lap ATM
>
> So yesterday I got my new laptop with quad core i7 and SSD. gentoo's
> openrc works nice, but systemd triggers a nasty kernel oops with btrfs
>
> The oops is while mounting my /home it get a null pointer at
> btrfs_test_super. After the backtrace (which I had will send later) I
> get a "btrfs detected SSD devices, enabling SSD mode"
>
> So really looks like a race. Ideas?
>
> That also bring us to the safety question: should we provide a way to
> force /etc/fstab entries to be mounted serially and forcefully? This
> would be helpful for buggy FS while you can't get the fix (or to
> install and apply the fix -- as I'm using openrc but in future I'll
> not)
>

Worths mentioning that all my fs are btrfs: /, /home and /var

-- 
Gustavo Sverzut Barbieri
http://profusion.mobi embedded systems
--------------------------------------
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Skype: gsbarbieri
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