Re: ZFS I/O errors

2011-05-31 Thread Jeremy Chadwick
On Tue, May 31, 2011 at 11:25:56AM +0200, Olaf Seibert wrote: > On Mon 30 May 2011 at 12:19:10 -0500, Dan Nelson wrote: > > The ZFS compression code will panic if it can't allocate the buffer needed > > to store the compressed data, so that's unlikely to be your problem. The > > only time I have s

Re: ZFS I/O errors

2011-05-31 Thread Olaf Seibert
On Mon 30 May 2011 at 12:19:10 -0500, Dan Nelson wrote: > The ZFS compression code will panic if it can't allocate the buffer needed > to store the compressed data, so that's unlikely to be your problem. The > only time I have seen an "illegal byte sequence" error was when trying to > copy raw dis

Re: ZFS I/O errors

2011-05-31 Thread Mickaƫl Maillot
Hi, 2011/5/30 Olaf Seibert > "My" FreeBSD system somehow rebooted itself last friday in the early > hours in the morning, and since then /var/log/messages is full with > messages like these: > > May 30 10:38:28 fourquid root: ZFS: zpool I/O failure, zpool=tank error=86 > May 30 10:38:38 fourquid

Re: ZFS I/O errors

2011-05-30 Thread Steven Hartland
- Original Message - From: "Dan Nelson" The zfs IO code overloads the EILSEQ error code and uses it as a "checksum error" code. Returning that error for the same block on all disks is definitely weird. Could you have run a partitioning tool, or some other program that would have done

Re: ZFS I/O errors

2011-05-30 Thread Dan Nelson
In the last episode (May 30), Olaf Seibert said: > On Mon 30 May 2011 at 03:33:49 -0700, Jeremy Chadwick wrote: > > On Mon, May 30, 2011 at 12:10:51PM +0200, Olaf Seibert wrote: > > I'm not sure why this didn't actually map to a filename on the system > > however. I've never quite understood what

Re: ZFS I/O errors

2011-05-30 Thread Olaf Seibert
On Mon 30 May 2011 at 03:33:49 -0700, Jeremy Chadwick wrote: > On Mon, May 30, 2011 at 12:10:51PM +0200, Olaf Seibert wrote: > I'm not sure why this didn't actually map to a filename on the system > however. I've never quite understood what the hexadecimal values shown > represent (I have ideas bu

Re: ZFS I/O errors

2011-05-30 Thread Jeremy Chadwick
On Mon, May 30, 2011 at 12:10:51PM +0200, Olaf Seibert wrote: > On Mon 30 May 2011 at 11:35:46 +0200, Olaf Seibert wrote: > > How do I identify which files it is listing here? On Solaris anyway, "zpool status -v" is supposed to show this. Occasionally it shows something like <0xXX>:, rather than a

Re: ZFS I/O errors

2011-05-30 Thread Olaf Seibert
On Mon 30 May 2011 at 11:35:46 +0200, Olaf Seibert wrote: > How do I identify which files it is listing here? The nighly 'find' has found the files for me. It is actually a bunch of directories, that were likely in use when the crash occurred. They give an "interesting" error when you try to ls t