FS / Kernel question choosing the correct kernel version

2012-06-23 Thread Stefan Priebe
Hi, i got stuck while selecting the right FS for ceph / RBD. XFS: - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_buf_lock while syncfs - under 3.5-rc3 all my machines got loaded doing nothing than waiting for XFS / SSDs so ceph is really slow / unuseable btrfs: - 3.5-rc3 ceph is prett

Re: FS / Kernel question choosing the correct kernel version

2012-06-25 Thread Sage Weil
On Sat, 23 Jun 2012, Stefan Priebe wrote: > Hi, > > i got stuck while selecting the right FS for ceph / RBD. > > XFS: > - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_buf_lock while syncfs There was an ilock fix that went into 3.4, IIRC. Have you tried vanilla 3.4? We are seeing some

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Christoph Hellwig
On Mon, Jun 25, 2012 at 03:11:17PM -0700, Sage Weil wrote: > On Sat, 23 Jun 2012, Stefan Priebe wrote: > > Hi, > > > > i got stuck while selecting the right FS for ceph / RBD. > > > > XFS: > > - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_buf_lock while syncfs > > There was an ilock fix

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Stefan Priebe
Am 26.06.2012 10:14, schrieb Christoph Hellwig: On Mon, Jun 25, 2012 at 03:11:17PM -0700, Sage Weil wrote: On Sat, 23 Jun 2012, Stefan Priebe wrote: Hi, i got stuck while selecting the right FS for ceph / RBD. XFS: - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_buf_lock while syncfs

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Stefan Priebe
Am 26.06.2012 00:11, schrieb Sage Weil: On Sat, 23 Jun 2012, Stefan Priebe wrote: Hi, i got stuck while selecting the right FS for ceph / RBD. XFS: - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_buf_lock while syncfs There was an ilock fix that went into 3.4, IIRC. Have you tried va

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Stefan Priebe
Am 26.06.2012 10:14, schrieb Christoph Hellwig: On Mon, Jun 25, 2012 at 03:11:17PM -0700, Sage Weil wrote: On Sat, 23 Jun 2012, Stefan Priebe wrote: Hi, i got stuck while selecting the right FS for ceph / RBD. XFS: - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_buf_lock while syncfs

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Sage Weil
On Tue, 26 Jun 2012, Christoph Hellwig wrote: > On Mon, Jun 25, 2012 at 03:11:17PM -0700, Sage Weil wrote: > > On Sat, 23 Jun 2012, Stefan Priebe wrote: > > > Hi, > > > > > > i got stuck while selecting the right FS for ceph / RBD. > > > > > > XFS: > > > - deadlock / hung task under 3.0.34 in xfs

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Stefan Priebe
Am 26.06.2012 11:07, schrieb Stefan Priebe: Am 26.06.2012 00:11, schrieb Sage Weil: On Sat, 23 Jun 2012, Stefan Priebe wrote: Hi, i got stuck while selecting the right FS for ceph / RBD. XFS: - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_buf_lock while syncfs There was an ilock fix

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Mark Nelson
On 06/26/2012 11:15 AM, Stefan Priebe wrote: Am 26.06.2012 11:07, schrieb Stefan Priebe: Am 26.06.2012 00:11, schrieb Sage Weil: On Sat, 23 Jun 2012, Stefan Priebe wrote: Hi, i got stuck while selecting the right FS for ceph / RBD. XFS: - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Stefan Priebe
Am 26.06.2012 18:29, schrieb Mark Nelson: On 06/26/2012 11:15 AM, Stefan Priebe wrote: Hi Stefan, If you can, it would be really interesting to see the blktrace results during these tests for both xfs and btrfs. blktrace is in the ubuntu repositories and can be run quite easily from the command

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Mark Nelson
On 06/26/2012 11:43 AM, Stefan Priebe wrote: Am 26.06.2012 18:29, schrieb Mark Nelson: On 06/26/2012 11:15 AM, Stefan Priebe wrote: Hi Stefan, If you can, it would be really interesting to see the blktrace results during these tests for both xfs and btrfs. blktrace is in the ubuntu repositories

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Stefan Priebe
I would but both XFS and btrfs are crashing after a short period. XFS crashes with this one: [ 479.732636] INFO: task ceph-osd:3217 blocked for more than 120 seconds. [ 479.747724] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 479.763534] ceph-osdD ff

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Stefan Priebe
and these: 359.919732] INFO: task xfsaild/sdd1:2247 blocked for more than 120 seconds. [ 359.934620] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 359.950059] xfsaild/sdd1D 0007 0 2247 2 0x [ 359.966026] 8810349d9cf0

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Stefan Priebe
Or these: 359.933112] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 359.949567] ceph-osdD 8180e9c0 0 3841 1 0x [ 359.966452] 880db567d7b8 0082 880db6c3 00012200 [ 359.983845] 880db567dfd8 f

Re: FS / Kernel question choosing the correct kernel version

2012-06-26 Thread Mark Nelson
On 06/26/2012 01:04 PM, Stefan Priebe wrote: Or these: 359.933112] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 359.949567] ceph-osd D 8180e9c0 0 3841 1 0x [ 359.966452] 880db567d7b8 0082 880db6c3 00012200 [ 359.983845