[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2019-01-03 Thread Felix Moreno
It happened to me, is not usual, in fact was muy first time, in my case it hanged forever, i was making a heavy use with nfs, ocal and lot of paralel copy writes and it stucked. No problems with the disks, just the process using 99% of cpu. -- You received this bug notification because you

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-09-12 Thread gf
Ok, thanks for changing the status, Colin. :) G -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1654517 Title: ZFS I/O hangs for minutes Status in Native ZFS for Linux: Fix

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-09-12 Thread Colin Ian King
This bug has been waiting for feedback for questions in comment #35 and #36 for months. I'm going to mark this bug as Won't fix because of limited responses. If this bug is still an issue, please re-open it. ** Changed in: zfs-linux (Ubuntu) Status: Incomplete => Won't Fix -- You

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-07-21 Thread gf
Hello Karl-Philipp, Thank you for submitting this bug and reporting a problem with the zfs-linux package. You made this bug report in 2007 and there have been several versions of Ubuntu since then. Could you confirm that this is no longer a problem and that we can close the ticket? If it is

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-07-17 Thread Colin Ian King
This stack trace is similar to one in https://github.com/zfsonlinux/zfs/issues/2934 - the suspected issue is that one of the devices is taking a long time to complete and ZFS is blocked waiting for this. I suggest installing sysstat sudo apt install sysstat and when the lockup happens run:

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-07-13 Thread Rafael David Tinoco
Found one in my Debian box logs: Jun 11 10:02:37 workstation kernel: [238276.640617] INFO: task txg_sync:5936 blocked for more than 120 seconds. Jun 11 10:02:37 workstation kernel: [238276.643806] Tainted: P O 4.16.0-2-amd64 #1 Debian 4.16.12- Jun 11 10:02:37 workstation

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-07-13 Thread Rafael David Tinoco
Hello Colin, nope. It looks like ZFS has some sort of contention in waiting the ZIL to finish the async callbacks from scheduled work, even when more spindles exist. Not sure if its related to slab merging or getting the objects from either slab/kmalloc or directly from page allocs. I think its a

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-07-13 Thread Colin Ian King
@Rafael, did the workaround in comment #31 help? ** Changed in: zfs-linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1654517

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-04-10 Thread Colin Ian King
You may possibly get some benefit from setting spl_kmem_cache_slab_limit to zero as a module parameter for the spl ZoL kernel module. This avoids SLUB slab merging entirely and maybe helpful from anecdotal evidence I've seen. -- You received this bug notification because you are a member of

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-03-29 Thread Rafael David Tinoco
@Colin 1. its a really simple one since this is my devel machine: one ssd disk only zpool: https://pastebin.ubuntu.com/p/gZPtrxRDnF/ hdparm: https://pastebin.ubuntu.com/p/JYyGwQ7cVr/ 2. 8 x 4.0GHz AMD cores and 32GB RAM meminfo: https://pastebin.ubuntu.com/p/kSjXSC6R3q/ (at the time of

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-03-29 Thread Colin Ian King
@Rafael, 1. what is your ZFS configuration (number of drives?) 2. size of your system (total memory, free memory). 3. Do your drive(s) suffer from large I/O latencies? - what is the output from iostat -mx -- You received this bug notification because you are a member of Kernel Packages,

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-03-28 Thread Rafael David Tinoco
Colin, I'm afraid this is an ongoing issue. I have faced this in 4.4 and 4.13 kernels: [ 240.568146] INFO: task txg_sync:2065 blocked for more than 120 seconds. [ 240.568218] Tainted: P O4.4.0-116-generic #140-Ubuntu [ 240.568268] "echo 0 >

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2018-03-28 Thread Rafael David Tinoco
Same issue (apparently) on upstream bug report tool: https://github.com/zfsonlinux/zfs/issues/2611 https://github.com/zfsonlinux/zfs/issues/2523 https://github.com/zfsonlinux/zfs/issues/4011 https://github.com/zfsonlinux/zfs/issues/2934 ** Bug watch added: Github Issue Tracker for ZFS #2611

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-07-12 Thread Colin Ian King
** Changed in: zfs-linux (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1654517 Title: ZFS I/O hangs for minutes Status in Native

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-07-05 Thread Colin Ian King
Hi, if this is still and issue please let me know. I'm going to close the bug if I don't get any response in 1 week. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1654517 Title:

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-05-31 Thread Colin Ian King
Is this still causing problems? Ive not heard any update on my question in comment #24, so I was wondering if this bug is still an issue. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu.

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-04-20 Thread Bug Watch Updater
** Changed in: zfs Status: Unknown => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1654517 Title: ZFS I/O hangs for minutes Status in Native ZFS for Linux:

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-04-20 Thread Colin Ian King
When this issue occurs again, can you run the following command: iostat -mx ..and past the output into the bug. Thanks ** Bug watch added: Github Issue Tracker for ZFS #2934 https://github.com/zfsonlinux/zfs/issues/2934 ** Also affects: zfs via

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-01-08 Thread Karl-Philipp Richter
** Description changed: I/O for multiple programs, like `thunderbird`, `firefox`, etc., hangs - for minutes, `dmesg` contains + for minutes and approx. 100 `z_rd_int_[n]` and `z_wr_int_[n]` kernel + threads are created, `dmesg` contains - [ 9184.451606] INFO: task txg_sync:11471 blocked

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-01-06 Thread Launchpad Bug Tracker
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: zfs-linux (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu.

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-01-06 Thread Joseph Salisbury
** Package changed: linux (Ubuntu) => zfs-linux (Ubuntu) ** Changed in: zfs-linux (Ubuntu) Status: Confirmed => New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1654517

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-01-06 Thread Karl-Philipp Richter
apport information ** Tags added: apport-collected ** Description changed: I/O for multiple programs, like `thunderbird`, `firefox`, etc., hangs for minutes, `dmesg` contains [ 9184.451606] INFO: task txg_sync:11471 blocked for more than 120 seconds. [ 9184.451610]

[Kernel-packages] [Bug 1654517] Re: ZFS I/O hangs for minutes

2017-01-06 Thread Aron Xu
** Package changed: zfs-linux (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1654517 Title: ZFS I/O hangs for minutes Status in linux package in Ubuntu: