Date: Mon, 23 Apr 2007 09:40:25 +0200 From: Gary Jennejohn <garyj@jennejohn.org> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: freebsd-current@FreeBSD.org Subject: Re: Problem with ZFS and devices Message-ID: <200704230740.l3N7ePYY002460@peedub.jennejohn.org> In-Reply-To: Message from Pawel Jakub Dawidek <pjd@FreeBSD.org> of "Sun, 22 Apr 2007 23:22:13 %2B0200." <20070422212213.GK52622@garage.freebsd.pl>
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Pawel Jakub Dawidek writes: > On Sun, Apr 22, 2007 at 01:11:43PM +0200, Gary Jennejohn wrote: > > I have a really strange problem with ZFS. > > > > I have a filesystem (mypool/scr mounted on /scr) which contains root file > > systems for various embedded boards (arm, ppc, mips). The file systems > > naturally contain a /dev directory. > > > > I have: > > mypool/scr devices on default > >=20 > > The device numbers a _totally_ fubar on ZFS! > > > > I used a tarball called dev.tar to move dev from a Linux box to my FreeBSD > > box. > > > > When I unpack dev.tar under ZFS I see totally screwd up values: > > > > crw-r--r-- 1 root bin 5, 0xc11b0020 Feb 3 22:06 ttyCPM0 > > crw-r--r-- 1 root bin 0, 0 Feb 3 22:06 ttyCPM1 > > crw-r--r-- 1 root bin 69, 0xc11a0008 Feb 3 22:06 ttyCPM2 > > crw-r--r-- 1 root bin 0, 0 Feb 3 22:06 ttyCPM3 > > crw-r--r-- 1 root bin 0, 0 Feb 3 22:06 ttyCPM4 > > crw-r--r-- 1 root bin 69, 0xc11a0008 Feb 3 22:06 ttyCPM5 > > > > If I unpack dev.tar under UFS (/tmp) then all device numbers are correct: > > > > crw-r--r-- 1 root bin 204, 46 Feb 3 22:06 ttyCPM0 > > crw-r--r-- 1 root bin 204, 47 Feb 3 22:06 ttyCPM1 > > crw-r--r-- 1 root bin 204, 48 Feb 3 22:06 ttyCPM2 > > crw-r--r-- 1 root bin 204, 49 Feb 3 22:06 ttyCPM3 > > crw-r--r-- 1 root bin 204, 50 Feb 3 22:06 ttyCPM4 > > crw-r--r-- 1 root bin 204, 51 Feb 3 22:06 ttyCPM5 > > > > The screwed up device numbers prevent me from using my FreeBSD box as the > > server for my embedded boards. > > > > Even weirder: > > > > root:peedub:~:bash:1> cd /scr/eldk-4.1/arm/arm/dev > > root:peedub:dev:bash:2> mknod ttyCPM0 c 204 46 > > root:peedub:dev:bash:3> ls -l > > total 1 > > crw-r--r-- 1 root bin 0, 0 Apr 22 13:02 ttyCPM0 > > > > Any ideas WTF is going here? Is this a pathological problem with ZFS? > > I just committed a fix. Can you update and confirm it works for you? > > PS. Thanks for the kind bug report. > I'll check it out ASAP. Thanks for the quick fix. I was just very surprised to discover that the entries in dev were so weird and I guess I got a little carried away with the email. Hope I didn't offend you. --- Gary Jennejohn / garyjATjennejohnDOTorg gjATfreebsdDOTorg garyjATdenxDOTde
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