Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread wirelessduck--- via Dng
> On 14 Sep 2022, at 15:24, Luciano Mannucci wrote: > > hello all! > > I have a virtual machine running under kvm who started hanging giving > this message just before it dies: > > kernel:[ 296.013011] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! > [swapper/0:0] > > This happens only

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Andreas Messer
Hi Luciano, Am Wed, Sep 14, 2022 at 07:24:07AM +0200 schrieb Luciano Mannucci: > hello all! > > I have a virtual machine running under kvm who started hanging giving > this message just before it dies: > > kernel:[ 296.013011] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! > [swapper/0:0] >

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Luciano Mannucci
On Wed, 14 Sep 2022 11:04:39 +0200 Andreas Messer wrote: > # Start background writing when more than 128MB data are in write cache > # This value is tuned regarding write performance of HDD ~ 100MB > vm.dirty_background_bytes=67108864 > vm.dirty_bytes=268435456 > > Maybe this additional informat

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Luciano Mannucci
On Wed, 14 Sep 2022 12:49:19 +0200 Luciano Mannucci wrote: > > vm.dirty_background_bytes=67108864 > > vm.dirty_bytes=268435456 > > > > Maybe this additional information is helpful: > > > > https://forum.proxmox.com/threads/io-performance-tuning.15893/ > > https://lonesysadmin.net/2013/12/22/bet

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Hector Gonzalez Jaime via Dng
On 9/14/22 10:02, Luciano Mannucci wrote: On Wed, 14 Sep 2022 12:49:19 +0200 Luciano Mannucci wrote: vm.dirty_background_bytes=67108864 vm.dirty_bytes=268435456 Maybe this additional information is helpful: https://forum.proxmox.com/threads/io-performance-tuning.15893/ https://lonesysadmin.

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Arnt Karlsen
On Wed, 14 Sep 2022 12:37:41 -0500, Hector wrote in message <36d765d0-e9a7-ccaa-8b36-098e1f275...@genac.org>: > On 9/14/22 10:02, Luciano Mannucci wrote: > > On Wed, 14 Sep 2022 12:49:19 +0200 > > Luciano Mannucci wrote: > > > >>> vm.dirty_background_bytes=67108864 > >>> vm.dirty_bytes=2684354

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Luciano Mannucci
On Wed, 14 Sep 2022 12:37:41 -0500 Hector Gonzalez Jaime via Dng wrote: > >kernel:[ 7336.007287] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! > > [swapper/0:0] > > > > if I write to the disk via dd nothing wrong happens... > > > > Luciano. > > Check which scheduler you are using, for

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Luciano Mannucci
On Wed, 14 Sep 2022 21:16:27 +0200 Arnt Karlsen wrote: > > echo "deadline" >/sys/block/sda/queue/scheduler > > > > ..a possibly simpler idea: Give the vm another cpu thread to > help do the i/o work? It already has twelve cpu theads. Is there a way to reserve some of them to I/O? Luciano. -

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Hector Gonzalez Jaime via Dng
On 9/14/22 14:54, Luciano Mannucci wrote: On Wed, 14 Sep 2022 12:37:41 -0500 Hector Gonzalez Jaime via Dng wrote: kernel:[ 7336.007287] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:0] if I write to the disk via dd nothing wrong happens... Luciano. Check which scheduler

Re: [DNG] Welcome to wiki.devuan.org!

2022-09-14 Thread Hendrik Boom
On Tue, Sep 13, 2022 at 08:41:22PM -0500, goli...@devuan.org wrote: > Greetings all! > > Did that get your attention? Good . . . :D > > The wiki has been languishing in the doldrums for some time in a rather > unusable state but it could become a reality if some Wiki Whisperers would > step up to

Re: [DNG] Chimaera CPU stuck

2022-09-14 Thread Arnt Karlsen
On Wed, 14 Sep 2022 21:56:43 +0200, Luciano wrote in message <4mswlm0ldwz1f...@baobab.bilink.it>: > On Wed, 14 Sep 2022 21:16:27 +0200 > Arnt Karlsen wrote: > > > > echo "deadline" >/sys/block/sda/queue/scheduler > > > > > > > ..a possibly simpler idea: Give the vm another cpu thread to