Re: [SOLVED] Re: Shutdown problem with an USB memory stick as ZFS cache device
On 24/07/2013 13.19, Ronald Klop wrote: On Thu, 18 Jul 2013 09:52:13 +0200, Maurizio Vairani maurizio.vair...@cloverinformatica.it wrote: On 17/07/2013 17:29, Julian H. Stacey wrote: Maurizio Vairani wrote: On 17/07/2013 11:50, Ronald Klop wrote: On Wed, 17 Jul 2013 10:27:09 +0200, Maurizio Vairani maurizio.vair...@cloverinformatica.it wrote: Hi all, on a Compaq Presario laptop I have just installed the latest stable #uname -a FreeBSD presario 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #0: Tue Jul 16 16:32:39 CEST 2013 root@presario:/usr/obj/usr/src/sys/GENERIC amd64 For speed up the compilation I have added to the pool, tank0, a SanDisk memory stick as cache device with the command: # zpool add tank0 cache /dev/da0 But when I shutdown the laptop the process will halt with this screen shot: http://www.dump-it.fr/freebsd-screen-shot/2f9169f18c7c77e52e873580f9c2d4bf.jpg.html and I need to press the power button for more than 4 seconds to switch off the laptop. The problem is always reproducible. Does sysctl hw.usb.no_shutdown_wait=1 help? Ronald. Thank you Ronald it works ! In /boot/loader.conf added the line hw.usb.no_shutdown_wait=1 Maurizio I wonder (from ignorance as I dont use ZFS yet), if that merely masks the symptom or cures the fault ? Presumably one should use a ZFS command to disassociate whatever might have the cache open ? (in case something might need to be written out from cache, if it was a writeable cache ?) I too had a USB shutdown problem (non ZFS, now solved) several people made useful comments on shutdown scripts etc, so I'm cross referencing: http://lists.freebsd.org/pipermail/freebsd-mobile/2013-July/012803.html Cheers, Julian Probably it masks the symptom. Andriy Gapon hypothesizes a bug in the ZFS clean up code: http://lists.freebsd.org/pipermail/freebsd-fs/2013-July/017857.html Surely one can use a startup script with the command: zpool add tank0 cache /dev/da0 and a shutdown script with: zpool remove tank0 /dev/da0 but this mask the symptom too. I prefer the Ronald solution because: - is simpler: it adds only one line (hw.usb.no_shutdown_wait=1) to one file (/boot/loader.conf). - is fastest: the zpool add/remove commands take time and “hw.usb.no_shutdown_wait=1” in /boot/loader.conf speeds up the shutdown process. - is cleaner: the zpool add/remove commands pair will fill up the tank0 pool history. Regards Maurizio Keep an eye on this commit when it is merged to 9-stable. http://svnweb.freebsd.org/changeset/base/253606 It might be the fix of the problem. Ronald. It works ! Just upgraded the laptop to r254783. Shutdown and reboot works fine, regardless of the hw.usb.no_shutdown_wait value. Thanks Maurizio ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: [SOLVED] Re: Shutdown problem with an USB memory stick as ZFS cache device
On Thu, 18 Jul 2013 09:52:13 +0200, Maurizio Vairani maurizio.vair...@cloverinformatica.it wrote: On 17/07/2013 17:29, Julian H. Stacey wrote: Maurizio Vairani wrote: On 17/07/2013 11:50, Ronald Klop wrote: On Wed, 17 Jul 2013 10:27:09 +0200, Maurizio Vairani maurizio.vair...@cloverinformatica.it wrote: Hi all, on a Compaq Presario laptop I have just installed the latest stable #uname -a FreeBSD presario 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #0: Tue Jul 16 16:32:39 CEST 2013 root@presario:/usr/obj/usr/src/sys/GENERIC amd64 For speed up the compilation I have added to the pool, tank0, a SanDisk memory stick as cache device with the command: # zpool add tank0 cache /dev/da0 But when I shutdown the laptop the process will halt with this screen shot: http://www.dump-it.fr/freebsd-screen-shot/2f9169f18c7c77e52e873580f9c2d4bf.jpg.html and I need to press the power button for more than 4 seconds to switch off the laptop. The problem is always reproducible. Does sysctl hw.usb.no_shutdown_wait=1 help? Ronald. Thank you Ronald it works ! In /boot/loader.conf added the line hw.usb.no_shutdown_wait=1 Maurizio I wonder (from ignorance as I dont use ZFS yet), if that merely masks the symptom or cures the fault ? Presumably one should use a ZFS command to disassociate whatever might have the cache open ? (in case something might need to be written out from cache, if it was a writeable cache ?) I too had a USB shutdown problem (non ZFS, now solved) several people made useful comments on shutdown scripts etc, so I'm cross referencing: http://lists.freebsd.org/pipermail/freebsd-mobile/2013-July/012803.html Cheers, Julian Probably it masks the symptom. Andriy Gapon hypothesizes a bug in the ZFS clean up code: http://lists.freebsd.org/pipermail/freebsd-fs/2013-July/017857.html Surely one can use a startup script with the command: zpool add tank0 cache /dev/da0 and a shutdown script with: zpool remove tank0 /dev/da0 but this mask the symptom too. I prefer the Ronald solution because: - is simpler: it adds only one line (hw.usb.no_shutdown_wait=1) to one file (/boot/loader.conf). - is fastest: the zpool add/remove commands take time and “hw.usb.no_shutdown_wait=1” in /boot/loader.conf speeds up the shutdown process. - is cleaner: the zpool add/remove commands pair will fill up the tank0 pool history. Regards Maurizio Keep an eye on this commit when it is merged to 9-stable. http://svnweb.freebsd.org/changeset/base/253606 It might be the fix of the problem. Ronald. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: [SOLVED] Re: Shutdown problem with an USB memory stick as ZFS cache device
On 17/07/2013 17:29, Julian H. Stacey wrote: Maurizio Vairani wrote: On 17/07/2013 11:50, Ronald Klop wrote: On Wed, 17 Jul 2013 10:27:09 +0200, Maurizio Vairani maurizio.vair...@cloverinformatica.it wrote: Hi all, on a Compaq Presario laptop I have just installed the latest stable #uname -a FreeBSD presario 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #0: Tue Jul 16 16:32:39 CEST 2013 root@presario:/usr/obj/usr/src/sys/GENERIC amd64 For speed up the compilation I have added to the pool, tank0, a SanDisk memory stick as cache device with the command: # zpool add tank0 cache /dev/da0 But when I shutdown the laptop the process will halt with this screen shot: http://www.dump-it.fr/freebsd-screen-shot/2f9169f18c7c77e52e873580f9c2d4bf.jpg.html and I need to press the power button for more than 4 seconds to switch off the laptop. The problem is always reproducible. Does sysctl hw.usb.no_shutdown_wait=1 help? Ronald. Thank you Ronald it works ! In /boot/loader.conf added the line hw.usb.no_shutdown_wait=1 Maurizio I wonder (from ignorance as I dont use ZFS yet), if that merely masks the symptom or cures the fault ? Presumably one should use a ZFS command to disassociate whatever might have the cache open ? (in case something might need to be written out from cache, if it was a writeable cache ?) I too had a USB shutdown problem (non ZFS, now solved) several people made useful comments on shutdown scripts etc, so I'm cross referencing: http://lists.freebsd.org/pipermail/freebsd-mobile/2013-July/012803.html Cheers, Julian Probably it masks the symptom. Andriy Gapon hypothesizes a bug in the ZFS clean up code: http://lists.freebsd.org/pipermail/freebsd-fs/2013-July/017857.html Surely one can use a startup script with the command: zpool add tank0 cache /dev/da0 and a shutdown script with: zpool remove tank0 /dev/da0 but this mask the symptom too. I prefer the Ronald solution because: - is simpler: it adds only one line (hw.usb.no_shutdown_wait=1) to one file (/boot/loader.conf). - is fastest: the zpool add/remove commands take time and “hw.usb.no_shutdown_wait=1” in /boot/loader.conf speeds up the shutdown process. - is cleaner: the zpool add/remove commands pair will fill up the tank0 pool history. Regards Maurizio ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
[SOLVED] Re: Shutdown problem with an USB memory stick as ZFS cache device
On 17/07/2013 11:50, Ronald Klop wrote: On Wed, 17 Jul 2013 10:27:09 +0200, Maurizio Vairani maurizio.vair...@cloverinformatica.it wrote: Hi all, on a Compaq Presario laptop I have just installed the latest stable #uname -a FreeBSD presario 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #0: Tue Jul 16 16:32:39 CEST 2013 root@presario:/usr/obj/usr/src/sys/GENERIC amd64 For speed up the compilation I have added to the pool, tank0, a SanDisk memory stick as cache device with the command: # zpool add tank0 cache /dev/da0 But when I shutdown the laptop the process will halt with this screen shot: http://www.dump-it.fr/freebsd-screen-shot/2f9169f18c7c77e52e873580f9c2d4bf.jpg.html and I need to press the power button for more than 4 seconds to switch off the laptop. The problem is always reproducible. Does sysctl hw.usb.no_shutdown_wait=1 help? Ronald. Thank you Ronald it works ! In /boot/loader.conf added the line hw.usb.no_shutdown_wait=1 Maurizio ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
Re: [SOLVED] Re: Shutdown problem with an USB memory stick as ZFS cache device
Maurizio Vairani wrote: On 17/07/2013 11:50, Ronald Klop wrote: On Wed, 17 Jul 2013 10:27:09 +0200, Maurizio Vairani maurizio.vair...@cloverinformatica.it wrote: Hi all, on a Compaq Presario laptop I have just installed the latest stable #uname -a FreeBSD presario 9.2-PRERELEASE FreeBSD 9.2-PRERELEASE #0: Tue Jul 16 16:32:39 CEST 2013 root@presario:/usr/obj/usr/src/sys/GENERIC amd64 For speed up the compilation I have added to the pool, tank0, a SanDisk memory stick as cache device with the command: # zpool add tank0 cache /dev/da0 But when I shutdown the laptop the process will halt with this screen shot: http://www.dump-it.fr/freebsd-screen-shot/2f9169f18c7c77e52e873580f9c2d4bf.jpg.html and I need to press the power button for more than 4 seconds to switch off the laptop. The problem is always reproducible. Does sysctl hw.usb.no_shutdown_wait=1 help? Ronald. Thank you Ronald it works ! In /boot/loader.conf added the line hw.usb.no_shutdown_wait=1 Maurizio I wonder (from ignorance as I dont use ZFS yet), if that merely masks the symptom or cures the fault ? Presumably one should use a ZFS command to disassociate whatever might have the cache open ? (in case something might need to be written out from cache, if it was a writeable cache ?) I too had a USB shutdown problem (non ZFS, now solved) several people made useful comments on shutdown scripts etc, so I'm cross referencing: http://lists.freebsd.org/pipermail/freebsd-mobile/2013-July/012803.html Cheers, Julian -- Julian Stacey, BSD Unix Linux C Sys Eng Consultant, Munich http://berklix.com Reply below not above, like a play script. Indent old text with . Send plain text. No quoted-printable, HTML, base64, multipart/alternative. ___ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to freebsd-stable-unsubscr...@freebsd.org
