[Kernel-packages] [Bug 1722261] Re: deadlock in mount umount and sync

2018-07-17 Thread Colin Ian King 
I'm going to mark this as "Won't Fix" as this issue is not occurring
with the zil_slog_limit change and I've not fixed anything. If this
problem re-occurs please re-open this bug.

** Changed in: zfs-linux (Ubuntu)
   Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/1722261

Title:
  deadlock in mount umount and sync

Status in zfs-linux package in Ubuntu:
  Won't Fix

Bug description:
  I use zfs vesion  0.6.5.6  on  Ubuntu 16.04.2 LTS . I have  many zombie 
process on auto-mount of snapshot and on sync !
  903 process are   in deadlock.  i can't mount a new file system or snapshot . 
Partial output of ps alx |grep 'call_r D'  below .

  what is the cause? what can I do ?

  0 0   2371  1  20   0   6016   752 call_r D?  0:00 
/bin/sync
  0 0  15290  1  20   0   6016   676 call_r D?  0:00 
/bin/sync
  0 0  18919  1  20   0   6016   708 call_r D?  0:00 
/bin/sync
  0 0  27076  1  20   0   6016   808 call_r D?  0:00 
/bin/sync
  4 0  31976  1  20   0  22084  1344 call_r D?  0:00 umount 
-t zfs -n /samba/shares/Aat/.zfs/snapshot/2017-10-04_09.00.05--5d

  error in kern.log:
  9 13:20:28 zfs-cis kernel: [5368563.592834] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.597868] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.601730] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.187001] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.13] WARNING: Unable to automount 
/samba/shares/Cardiologia2/.zfs/snapshot/2017-10-03_12.00.03--5d/pool_z2_samba/shares/Cardiologia2@2017-10-03_12.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.15] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.189005] WARNING: Unable to automount 
/samba/shares/Aat/.zfs/snapshot/2017-10-03_20.00.04--5d/pool_z2_samba/shares/Aat@2017-10-03_20.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.190105] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.192847] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.193617] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.198096] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256


  
  in syslog :

  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=155 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dLaboratorio_5fTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=202 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dProgettoTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=260 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dTrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=291 
reply_cookie=0 error=n/a
  Oct  9 12:22:13 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll

[Kernel-packages] [Bug 1722261] Re: deadlock in mount umount and sync

2018-04-24 Thread Colin Ian King 
OK, lets keep this bug open for a few more months and if you see the
problem again, please update the bug report.

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1722261

Title:
  deadlock in mount umount and sync

Status in zfs-linux package in Ubuntu:
  Incomplete

Bug description:
  I use zfs vesion  0.6.5.6  on  Ubuntu 16.04.2 LTS . I have  many zombie 
process on auto-mount of snapshot and on sync !
  903 process are   in deadlock.  i can't mount a new file system or snapshot . 
Partial output of ps alx |grep 'call_r D'  below .

  what is the cause? what can I do ?

  0 0   2371  1  20   0   6016   752 call_r D?  0:00 
/bin/sync
  0 0  15290  1  20   0   6016   676 call_r D?  0:00 
/bin/sync
  0 0  18919  1  20   0   6016   708 call_r D?  0:00 
/bin/sync
  0 0  27076  1  20   0   6016   808 call_r D?  0:00 
/bin/sync
  4 0  31976  1  20   0  22084  1344 call_r D?  0:00 umount 
-t zfs -n /samba/shares/Aat/.zfs/snapshot/2017-10-04_09.00.05--5d

  error in kern.log:
  9 13:20:28 zfs-cis kernel: [5368563.592834] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.597868] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.601730] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.187001] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.13] WARNING: Unable to automount 
/samba/shares/Cardiologia2/.zfs/snapshot/2017-10-03_12.00.03--5d/pool_z2_samba/shares/Cardiologia2@2017-10-03_12.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.15] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.189005] WARNING: Unable to automount 
/samba/shares/Aat/.zfs/snapshot/2017-10-03_20.00.04--5d/pool_z2_samba/shares/Aat@2017-10-03_20.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.190105] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.192847] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.193617] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.198096] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256


  
  in syslog :

  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=155 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dLaboratorio_5fTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=202 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dProgettoTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=260 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dTrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=291 
reply_cookie=0 error=n/a
  Oct  9 12:22:13 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=155 
reply_cookie=0 error=n/a
  Oct  9 12:22:13 zfs-cis systemd[1]: Got message type=method_call sender=n/a

Re: [Kernel-packages] [Bug 1722261] Re: deadlock in mount umount and sync

2018-04-24 Thread alberto fiaschi 
I change zil_slog_limit.
It's a lot that the problem not come back.


Il mar 24 apr 2018, 17:41 Colin Ian King <1722...@bugs.launchpad.net> ha
scritto:

> @Aleberto, any feedback from comment #5 would be appreciated.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1722261
>
> Title:
>   deadlock in mount umount and sync
>
> Status in zfs-linux package in Ubuntu:
>   Incomplete
>
> Bug description:
>   I use zfs vesion  0.6.5.6  on  Ubuntu 16.04.2 LTS . I have  many zombie
> process on auto-mount of snapshot and on sync !
>   903 process are   in deadlock.  i can't mount a new file system or
> snapshot . Partial output of ps alx |grep 'call_r D'  below .
>
>   what is the cause? what can I do ?
>
>   0 0   2371  1  20   0   6016   752 call_r D?  0:00
> /bin/sync
>   0 0  15290  1  20   0   6016   676 call_r D?  0:00
> /bin/sync
>   0 0  18919  1  20   0   6016   708 call_r D?  0:00
> /bin/sync
>   0 0  27076  1  20   0   6016   808 call_r D?  0:00
> /bin/sync
>   4 0  31976  1  20   0  22084  1344 call_r D?  0:00
> umount -t zfs -n /samba/shares/Aat/.zfs/snapshot/2017-10-04_09.00.05--5d
>
>   error in kern.log:
>   9 13:20:28 zfs-cis kernel: [5368563.592834] WARNING: Unable to automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
> 256
>   Oct  9 13:20:28 zfs-cis kernel: [5368563.597868] WARNING: Unable to
> automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
> 256
>   Oct  9 13:20:28 zfs-cis kernel: [5368563.601730] WARNING: Unable to
> automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
> 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.187001] WARNING: Unable to
> automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
> 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.13] WARNING: Unable to
> automount
> /samba/shares/Cardiologia2/.zfs/snapshot/2017-10-03_12.00.03--5d/pool_z2_samba/shares/Cardiologia2@2017-10-03_12.00.03--5d:
> 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.15] WARNING: Unable to
> automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
> 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.189005] WARNING: Unable to
> automount
> /samba/shares/Aat/.zfs/snapshot/2017-10-03_20.00.04--5d/pool_z2_samba/shares/Aat@2017-10-03_20.00.04--5d:
> 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.190105] WARNING: Unable to
> automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
> 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.192847] WARNING: Unable to
> automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
> 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.193617] WARNING: Unable to
> automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
> 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.198096] WARNING: Unable to
> automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
> 256
>
>
>
>   in syslog :
>
>   Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call
> sender=n/a destination=org.freedesktop.systemd1
> object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount
> interface=org.freedesktop.DBus.Properties member=GetAll cookie=155
> reply_cookie=0 error=n/a
>   Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call
> sender=n/a destination=org.freedesktop.systemd1
> object=/org/freedesktop/systemd1/unit/samba_2dshares_2dLaboratorio_5fTrapianti_2emount
> interface=org.freedesktop.DBus.Properties member=GetAll cookie=202
> reply_cookie=0 error=n/a
>   Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call
> sender=n/a destination=org.freedesktop.systemd1
> object=/org/freedesktop/systemd1/unit/samba_2dshares_2dProgettoTrapianti_2emount
> interface=org.freedesktop.DBus.Properties member=GetAll cookie=260
> reply_cookie=0 error=n/a
>   Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call
> sender=n/a destination=org.freedesktop.systemd1
> object=/org/freedesktop/systemd1/unit/samba_2dshares_2dTrapianti_2emount
> interface=org.freedesktop.DBus.Properties member=GetAll cookie=291
> reply_cookie=0 error=n/a
>   Oct  9 12:22:13 zfs-cis systemd[1]: Got message type=method_call
> sender=n/a destination=org.freedesktop.systemd1
>

[Kernel-packages] [Bug 1722261] Re: deadlock in mount umount and sync

2018-04-24 Thread Colin Ian King 
@Aleberto, any feedback from comment #5 would be appreciated.

-- 
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/1722261

Title:
  deadlock in mount umount and sync

Status in zfs-linux package in Ubuntu:
  Incomplete

Bug description:
  I use zfs vesion  0.6.5.6  on  Ubuntu 16.04.2 LTS . I have  many zombie 
process on auto-mount of snapshot and on sync !
  903 process are   in deadlock.  i can't mount a new file system or snapshot . 
Partial output of ps alx |grep 'call_r D'  below .

  what is the cause? what can I do ?

  0 0   2371  1  20   0   6016   752 call_r D?  0:00 
/bin/sync
  0 0  15290  1  20   0   6016   676 call_r D?  0:00 
/bin/sync
  0 0  18919  1  20   0   6016   708 call_r D?  0:00 
/bin/sync
  0 0  27076  1  20   0   6016   808 call_r D?  0:00 
/bin/sync
  4 0  31976  1  20   0  22084  1344 call_r D?  0:00 umount 
-t zfs -n /samba/shares/Aat/.zfs/snapshot/2017-10-04_09.00.05--5d

  error in kern.log:
  9 13:20:28 zfs-cis kernel: [5368563.592834] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.597868] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.601730] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.187001] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.13] WARNING: Unable to automount 
/samba/shares/Cardiologia2/.zfs/snapshot/2017-10-03_12.00.03--5d/pool_z2_samba/shares/Cardiologia2@2017-10-03_12.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.15] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.189005] WARNING: Unable to automount 
/samba/shares/Aat/.zfs/snapshot/2017-10-03_20.00.04--5d/pool_z2_samba/shares/Aat@2017-10-03_20.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.190105] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.192847] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.193617] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.198096] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256


  
  in syslog :

  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=155 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dLaboratorio_5fTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=202 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dProgettoTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=260 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dTrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=291 
reply_cookie=0 error=n/a
  Oct  9 12:22:13 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=155 
reply_cookie=0 error=n/a
  Oct  9 12:22:13 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1

[Kernel-packages] [Bug 1722261] Re: deadlock in mount umount and sync

2018-04-17 Thread Colin Ian King 
Couple of things:

1. Next time this occurs, can you run the following command and paste
the output into the bug report:

sudo zpool events -v

That may provide some additional information on what state the IOs are
in.

2. If you are using ZFS intent log, it may be worth trying to set it to
a fairly large size, such as 128 or 256MB using the zil_slog_limit
setting

-- 
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/1722261

Title:
  deadlock in mount umount and sync

Status in zfs-linux package in Ubuntu:
  Incomplete

Bug description:
  I use zfs vesion  0.6.5.6  on  Ubuntu 16.04.2 LTS . I have  many zombie 
process on auto-mount of snapshot and on sync !
  903 process are   in deadlock.  i can't mount a new file system or snapshot . 
Partial output of ps alx |grep 'call_r D'  below .

  what is the cause? what can I do ?

  0 0   2371  1  20   0   6016   752 call_r D?  0:00 
/bin/sync
  0 0  15290  1  20   0   6016   676 call_r D?  0:00 
/bin/sync
  0 0  18919  1  20   0   6016   708 call_r D?  0:00 
/bin/sync
  0 0  27076  1  20   0   6016   808 call_r D?  0:00 
/bin/sync
  4 0  31976  1  20   0  22084  1344 call_r D?  0:00 umount 
-t zfs -n /samba/shares/Aat/.zfs/snapshot/2017-10-04_09.00.05--5d

  error in kern.log:
  9 13:20:28 zfs-cis kernel: [5368563.592834] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.597868] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.601730] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.187001] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.13] WARNING: Unable to automount 
/samba/shares/Cardiologia2/.zfs/snapshot/2017-10-03_12.00.03--5d/pool_z2_samba/shares/Cardiologia2@2017-10-03_12.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.15] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.189005] WARNING: Unable to automount 
/samba/shares/Aat/.zfs/snapshot/2017-10-03_20.00.04--5d/pool_z2_samba/shares/Aat@2017-10-03_20.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.190105] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.192847] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.193617] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.198096] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256


  
  in syslog :

  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=155 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dLaboratorio_5fTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=202 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dProgettoTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=260 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dTrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=291 
reply_cookie=0 error=n/a
  Oct  9 12:22:13 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1

Re: [Kernel-packages] [Bug 1722261] Re: deadlock in mount umount and sync

2018-04-13 Thread alberto fiaschi 
the cause are some smbd processes in state D
the block happens randomly with a frequency of about 3 months.



*«L'immaginazione è più importante della conoscenza.» - Albert
Einstein.*


*Alberto M.Fiaschi*


*http://it.linkedin.com/pub/alberto-fiaschi
 *

2018-04-12 19:01 GMT+02:00 Colin Ian King <1722...@bugs.launchpad.net>:

> Is this still and issue for you?
>
> You may be able to identify the processes that are causing the problem
> using the fuser command, e.g. on mounted zfs file system /poolname use:
>
> fuser -vm /poolname
>
> maybe that helps.
>
>
>
> ** Changed in: zfs-linux (Ubuntu)
>Status: New => Incomplete
>
> ** Changed in: zfs-linux (Ubuntu)
>Importance: Undecided => Low
>
> ** Changed in: zfs-linux (Ubuntu)
>  Assignee: (unassigned) => Colin Ian King (colin-king)
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1722261
>
> Title:
>   deadlock in mount umount and sync
>
> Status in zfs-linux package in Ubuntu:
>   Incomplete
>
> Bug description:
>   I use zfs vesion  0.6.5.6  on  Ubuntu 16.04.2 LTS . I have  many zombie
> process on auto-mount of snapshot and on sync !
>   903 process are   in deadlock.  i can't mount a new file system or
> snapshot . Partial output of ps alx |grep 'call_r D'  below .
>
>   what is the cause? what can I do ?
>
>   0 0   2371  1  20   0   6016   752 call_r D?  0:00
> /bin/sync
>   0 0  15290  1  20   0   6016   676 call_r D?  0:00
> /bin/sync
>   0 0  18919  1  20   0   6016   708 call_r D?  0:00
> /bin/sync
>   0 0  27076  1  20   0   6016   808 call_r D?  0:00
> /bin/sync
>   4 0  31976  1  20   0  22084  1344 call_r D?  0:00
> umount -t zfs -n /samba/shares/Aat/.zfs/snapshot/2017-10-04_09.00.05--5d
>
>   error in kern.log:
>   9 13:20:28 zfs-cis kernel: [5368563.592834] WARNING: Unable to automount
> /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d: 256
>   Oct  9 13:20:28 zfs-cis kernel: [5368563.597868] WARNING: Unable to
> automount /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d: 256
>   Oct  9 13:20:28 zfs-cis kernel: [5368563.601730] WARNING: Unable to
> automount /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d: 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.187001] WARNING: Unable to
> automount /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d: 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.13] WARNING: Unable to
> automount /samba/shares/Cardiologia2/.zfs/snapshot/2017-10-03_12.00.
> 03--5d/pool_z2_samba/shares/Cardiologia2@2017-10-03_12.00.03--5d: 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.15] WARNING: Unable to
> automount /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d: 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.189005] WARNING: Unable to
> automount /samba/shares/Aat/.zfs/snapshot/2017-10-03_20.00.04--
> 5d/pool_z2_samba/shares/Aat@2017-10-03_20.00.04--5d: 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.190105] WARNING: Unable to
> automount /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d: 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.192847] WARNING: Unable to
> automount /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d: 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.193617] WARNING: Unable to
> automount /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d: 256
>   Oct  9 13:22:57 zfs-cis kernel: [5368713.198096] WARNING: Unable to
> automount /samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--
> 5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d: 256
>
>
>
>   in syslog :
>
>   Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call
> sender=n/a destination=org.freedesktop.systemd1 object=/org/freedesktop/
> systemd1/unit/samba_2dshares_2dChtrapianti_2emount
> interface=org.freedesktop.DBus.Properties member=GetAll cookie=155
> reply_cookie=0 error=n/a
>   Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call
> sender=n/a destination=org.freedesktop.systemd1 object=/org/freedesktop/
> systemd1/unit/samba_2dshares_2dLaboratorio_5fTrapianti_2emount
> interface=org.freedesktop.DBus.Properties member=GetAll cookie=202
> reply_cookie=0 error=n/a
>   Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call
>

[Kernel-packages] [Bug 1722261] Re: deadlock in mount umount and sync

2018-04-12 Thread Colin Ian King 
Is this still and issue for you?

You may be able to identify the processes that are causing the problem
using the fuser command, e.g. on mounted zfs file system /poolname use:

fuser -vm /poolname

maybe that helps.



** Changed in: zfs-linux (Ubuntu)
   Status: New => Incomplete

** Changed in: zfs-linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: zfs-linux (Ubuntu)
 Assignee: (unassigned) => Colin Ian King (colin-king)

-- 
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/1722261

Title:
  deadlock in mount umount and sync

Status in zfs-linux package in Ubuntu:
  Incomplete

Bug description:
  I use zfs vesion  0.6.5.6  on  Ubuntu 16.04.2 LTS . I have  many zombie 
process on auto-mount of snapshot and on sync !
  903 process are   in deadlock.  i can't mount a new file system or snapshot . 
Partial output of ps alx |grep 'call_r D'  below .

  what is the cause? what can I do ?

  0 0   2371  1  20   0   6016   752 call_r D?  0:00 
/bin/sync
  0 0  15290  1  20   0   6016   676 call_r D?  0:00 
/bin/sync
  0 0  18919  1  20   0   6016   708 call_r D?  0:00 
/bin/sync
  0 0  27076  1  20   0   6016   808 call_r D?  0:00 
/bin/sync
  4 0  31976  1  20   0  22084  1344 call_r D?  0:00 umount 
-t zfs -n /samba/shares/Aat/.zfs/snapshot/2017-10-04_09.00.05--5d

  error in kern.log:
  9 13:20:28 zfs-cis kernel: [5368563.592834] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.597868] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.601730] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.187001] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.13] WARNING: Unable to automount 
/samba/shares/Cardiologia2/.zfs/snapshot/2017-10-03_12.00.03--5d/pool_z2_samba/shares/Cardiologia2@2017-10-03_12.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.15] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.189005] WARNING: Unable to automount 
/samba/shares/Aat/.zfs/snapshot/2017-10-03_20.00.04--5d/pool_z2_samba/shares/Aat@2017-10-03_20.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.190105] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.192847] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.193617] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.198096] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256


  
  in syslog :

  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dChtrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=155 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dLaboratorio_5fTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=202 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dProgettoTrapianti_2emount
 interface=org.freedesktop.DBus.Properties member=GetAll cookie=260 
reply_cookie=0 error=n/a
  Oct  9 12:22:12 zfs-cis systemd[1]: Got message type=method_call sender=n/a 
destination=org.freedesktop.systemd1 
object=/org/freedesktop/systemd1/unit/samba_2dshares_2dTrapianti_2emount 
interface=org.freedesktop.DBus.Properties member=GetAll cookie=291 
reply_cookie=0 error=n/a
  Oct  9 12:22:13 zfs-cis systemd[1]: Got message

[Kernel-packages] [Bug 1722261] Re: deadlock in mount umount and sync

2018-01-23 Thread alberto fiaschi 
Another lock. Several smbd processes hold lock-up files. Impossible to kill 
them because they are in state D. Failed to restart samba and make file system 
umount.
smbd process stack:
[] cv_wait_common+0x10b/0x140 [spl]
[] __cv_wait+0x15/0x20 [spl]
[] zfs_dirent_lock+0x175/0x590 [zfs]
[] zfs_get_xattrdir+0x12b/0x1b0 [zfs]
[] zfs_lookup+0x1c4/0x310 [zfs]
[] zpl_xattr_get_dir+0x64/0x110 [zfs]
[] zpl_xattr_get+0xbb/0x1a0 [zfs]
[] zpl_xattr_user_get+0x5f/0x80 [zfs]
[] generic_getxattr+0x4b/0x70
[] vfs_getxattr+0x88/0xb0
[] getxattr+0xa8/0x200
[] path_getxattr+0x65/0xb0
[] SyS_getxattr+0x14/0x20
[] entry_SYSCALL_64_fastpath+0x16/0x71
[] 0x

smbd status:
Name:   smbd
State:  D (disk sleep)
Tgid:   451
Ngid:   451
Pid:451
PPid:   1
TracerPid:  0
Uid:65534   65534   0   65534
Gid:0   36080   3608
FDSize: 64
Groups: 65534 
NStgid: 451
NSpid:  451
NSpgid: 74623
NSsid:  74623
VmPeak:   482860 kB
VmSize:   482860 kB
VmLck: 0 kB
VmPin: 0 kB
VmHWM: 22528 kB
VmRSS: 19760 kB
VmData:   100048 kB
VmStk:   132 kB
VmExe:64 kB
VmLib: 33124 kB
VmPTE:   720 kB
VmPMD:16 kB
VmSwap:0 kB
HugetlbPages:  0 kB
Threads:1
SigQ:   412/514626
SigPnd: 0100
ShdPnd: 4100
SigBlk: 1880
SigIgn: 2000
SigCgt: 000580014461
CapInh: 
CapPrm: 003f
CapEff: 
CapBnd: 003f
CapAmb: 
Seccomp:0
Cpus_allowed:   ,,,,,
Cpus_allowed_list:  0-191
Mems_allowed:   ,0003
Mems_allowed_list:  0-1
voluntary_ctxt_switches:121
nonvoluntary_ctxt_switches: 299

-- 
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/1722261

Title:
  deadlock in mount umount and sync

Status in zfs-linux package in Ubuntu:
  New

Bug description:
  I use zfs vesion  0.6.5.6  on  Ubuntu 16.04.2 LTS . I have  many zombie 
process on auto-mount of snapshot and on sync !
  903 process are   in deadlock.  i can't mount a new file system or snapshot . 
Partial output of ps alx |grep 'call_r D'  below .

  what is the cause? what can I do ?

  0 0   2371  1  20   0   6016   752 call_r D?  0:00 
/bin/sync
  0 0  15290  1  20   0   6016   676 call_r D?  0:00 
/bin/sync
  0 0  18919  1  20   0   6016   708 call_r D?  0:00 
/bin/sync
  0 0  27076  1  20   0   6016   808 call_r D?  0:00 
/bin/sync
  4 0  31976  1  20   0  22084  1344 call_r D?  0:00 umount 
-t zfs -n /samba/shares/Aat/.zfs/snapshot/2017-10-04_09.00.05--5d

  error in kern.log:
  9 13:20:28 zfs-cis kernel: [5368563.592834] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.597868] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:20:28 zfs-cis kernel: [5368563.601730] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_08.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_08.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.187001] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.13] WARNING: Unable to automount 
/samba/shares/Cardiologia2/.zfs/snapshot/2017-10-03_12.00.03--5d/pool_z2_samba/shares/Cardiologia2@2017-10-03_12.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.15] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.189005] WARNING: Unable to automount 
/samba/shares/Aat/.zfs/snapshot/2017-10-03_20.00.04--5d/pool_z2_samba/shares/Aat@2017-10-03_20.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.190105] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.192847] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_10.00.03--5d/pool_z2_samba/shares/Trapianti@2017-10-03_10.00.03--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.193617] WARNING: Unable to automount 
/samba/shares/Trapianti/.zfs/snapshot/2017-10-03_14.00.04--5d/pool_z2_samba/shares/Trapianti@2017-10-03_14.00.04--5d:
 256
  Oct  9 13:22:57 zfs-cis kernel: [5368713.198096] WARNING: Unable to automount