| To: | olaf@xxxxxxxxxxxxx |
|---|---|
| Subject: | Re: XFS for postgres databases? |
| From: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
| Date: | Mon, 7 Jun 2004 10:22:25 +0100 |
| Cc: | Steve Lord <lord@xxxxxxx>, Jeremy Jackson <jerj@xxxxxxxxxxxx>, Nathan Scott <nathans@xxxxxxx>, linux-xfs@xxxxxxxxxxx |
| In-reply-to: | <1086596193.2488.10.camel@venus.local.navi.pl> |
| References: | <200405121300.14866.stevew@catalyst.net.nz> <1084332608.11308.3.camel@noodles> <20040512143941.A389759@wobbly.melbourne.sgi.com> <200405121618.27843.ncunningham@linuxmail.org> <20040512165624.C389759@wobbly.melbourne.sgi.com> <20040512130047.A28089@infradead.org> <40C0D621.2010001@coplanar.net> <40C0D7A8.9050500@xfs.org> <1086596193.2488.10.camel@venus.local.navi.pl> |
| Sender: | linux-xfs-bounce@xxxxxxxxxxx |
| User-agent: | Mutt/1.4.1i |
> nobody suspects that reading block device with mounted filesystem can > produce any kind of corruption. > I think that there should be some info in the kernel config, saying that > it is not allowed to run ANY program which uses block device for reading > (like hdparm) on device with mounted XFS filesystem. I have a 2.6 patch here that fixes but introduces a deadlock under load in exchance which I've started to track down, but I've been sidetracked by some othere issues. > BTW., if I have XFS on /dev/sda1 is it unsafe to access /dev/sda1 only > or the whole /dev/sda too? If the latter, it means that modyfying > partition table is also an unsafe operation. This would be really ugly. Accessing other partitions or the whole device special file is okay. |
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