Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, May 02, 2017 at 09:44:33AM +0200, Michal Hocko wrote: > On Mon 01-05-17 21:12:35, Marc MERLIN wrote: > > Howdy, > > > > Well, sadly, the problem is more or less back is 4.11.0. The system doesn't > > really > > crash but it goes into an infinite loop with > > [34776.826800] BUG:

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, May 02, 2017 at 09:44:33AM +0200, Michal Hocko wrote: > On Mon 01-05-17 21:12:35, Marc MERLIN wrote: > > Howdy, > > > > Well, sadly, the problem is more or less back is 4.11.0. The system doesn't > > really > > crash but it goes into an infinite loop with > > [34776.826800] BUG:

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 2017/05/02 13:12, Marc MERLIN wrote: > Well, sadly, the problem is more or less back is 4.11.0. The system doesn't > really > crash but it goes into an infinite loop with > [34776.826800] BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 > stuck for 33s! Wow, two of workqueues are

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 2017/05/02 13:12, Marc MERLIN wrote: > Well, sadly, the problem is more or less back is 4.11.0. The system doesn't > really > crash but it goes into an infinite loop with > [34776.826800] BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 > stuck for 33s! Wow, two of workqueues are

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon 01-05-17 21:12:35, Marc MERLIN wrote: > Howdy, > > Well, sadly, the problem is more or less back is 4.11.0. The system doesn't > really > crash but it goes into an infinite loop with > [34776.826800] BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 > stuck for 33s! > More

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon 01-05-17 21:12:35, Marc MERLIN wrote: > Howdy, > > Well, sadly, the problem is more or less back is 4.11.0. The system doesn't > really > crash but it goes into an infinite loop with > [34776.826800] BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 > stuck for 33s! > More

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

Howdy, Well, sadly, the problem is more or less back is 4.11.0. The system doesn't really crash but it goes into an infinite loop with [34776.826800] BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 stuck for 33s! More logs: https://pastebin.com/YqE4riw0 (I upgraded from 4.8 with

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

Howdy, Well, sadly, the problem is more or less back is 4.11.0. The system doesn't really crash but it goes into an infinite loop with [34776.826800] BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 stuck for 33s! More logs: https://pastebin.com/YqE4riw0 (I upgraded from 4.8 with

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 12/01/2016 11:37 AM, Linus Torvalds wrote: > On Thu, Dec 1, 2016 at 10:30 AM, Jens Axboe wrote: >> >> It's two different kinds of throttling. The vm absolutely should >> throttle at dirty time, to avoid having insane amounts of memory dirty. >> On the block layer side, throttling

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 12/01/2016 11:37 AM, Linus Torvalds wrote: > On Thu, Dec 1, 2016 at 10:30 AM, Jens Axboe wrote: >> >> It's two different kinds of throttling. The vm absolutely should >> throttle at dirty time, to avoid having insane amounts of memory dirty. >> On the block layer side, throttling is about

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Thu, Dec 1, 2016 at 10:30 AM, Jens Axboe wrote: > > It's two different kinds of throttling. The vm absolutely should > throttle at dirty time, to avoid having insane amounts of memory dirty. > On the block layer side, throttling is about avoid the device queues > being too long.

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Thu, Dec 1, 2016 at 10:30 AM, Jens Axboe wrote: > > It's two different kinds of throttling. The vm absolutely should > throttle at dirty time, to avoid having insane amounts of memory dirty. > On the block layer side, throttling is about avoid the device queues > being too long. It's very

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 12/01/2016 11:16 AM, Linus Torvalds wrote: > On Thu, Dec 1, 2016 at 5:50 AM, Kent Overstreet > wrote: >> >> That said, I'm not sure how I feel about Jens's exact approach... it seems >> to me >> that this can really just live within the writeback code, I don't know

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 12/01/2016 11:16 AM, Linus Torvalds wrote: > On Thu, Dec 1, 2016 at 5:50 AM, Kent Overstreet > wrote: >> >> That said, I'm not sure how I feel about Jens's exact approach... it seems >> to me >> that this can really just live within the writeback code, I don't know why it >> should involve

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Thu, Dec 1, 2016 at 5:50 AM, Kent Overstreet wrote: > > That said, I'm not sure how I feel about Jens's exact approach... it seems to > me > that this can really just live within the writeback code, I don't know why it > should involve the block layer at all. plus,

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Thu, Dec 1, 2016 at 5:50 AM, Kent Overstreet wrote: > > That said, I'm not sure how I feel about Jens's exact approach... it seems to > me > that this can really just live within the writeback code, I don't know why it > should involve the block layer at all. plus, if I understand correctly

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wed, Nov 30, 2016 at 03:30:11PM -0500, Tejun Heo wrote: > Hello, > > On Wed, Nov 30, 2016 at 10:14:50AM -0800, Linus Torvalds wrote: > > Tejun/Kent - any way to just limit the workqueue depth for bcache? > > Because that really isn't helping, and things *will* time out and > > cause those

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wed, Nov 30, 2016 at 03:30:11PM -0500, Tejun Heo wrote: > Hello, > > On Wed, Nov 30, 2016 at 10:14:50AM -0800, Linus Torvalds wrote: > > Tejun/Kent - any way to just limit the workqueue depth for bcache? > > Because that really isn't helping, and things *will* time out and > > cause those

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

Hello, On Wed, Nov 30, 2016 at 10:14:50AM -0800, Linus Torvalds wrote: > Tejun/Kent - any way to just limit the workqueue depth for bcache? > Because that really isn't helping, and things *will* time out and > cause those problems when you have hundreds of IO's queued on a disk > that likely as a

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

Hello, On Wed, Nov 30, 2016 at 10:14:50AM -0800, Linus Torvalds wrote: > Tejun/Kent - any way to just limit the workqueue depth for bcache? > Because that really isn't helping, and things *will* time out and > cause those problems when you have hundreds of IO's queued on a disk > that likely as a

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/30/2016 11:14 AM, Linus Torvalds wrote: > On Wed, Nov 30, 2016 at 9:47 AM, Marc MERLIN wrote: >> >> I gave it a thought again, I think it is exactly the nasty situation you >> described. >> bcache takes I/O quickly while sending to SSD cache. SSD fills up, now >> bcache

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/30/2016 11:14 AM, Linus Torvalds wrote: > On Wed, Nov 30, 2016 at 9:47 AM, Marc MERLIN wrote: >> >> I gave it a thought again, I think it is exactly the nasty situation you >> described. >> bcache takes I/O quickly while sending to SSD cache. SSD fills up, now >> bcache can't handle IO as

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wed, Nov 30, 2016 at 10:14:50AM -0800, Linus Torvalds wrote: > Anyway, none of this seems new per se. I'm adding Kent and Jens to the > cc (Tejun already was), in the hope that maybe they have some idea how > to control the nasty worst-case behavior wrt workqueue lockup (it's > not really a

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wed, Nov 30, 2016 at 10:14:50AM -0800, Linus Torvalds wrote: > Anyway, none of this seems new per se. I'm adding Kent and Jens to the > cc (Tejun already was), in the hope that maybe they have some idea how > to control the nasty worst-case behavior wrt workqueue lockup (it's > not really a

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wed, Nov 30, 2016 at 9:47 AM, Marc MERLIN wrote: > > I gave it a thought again, I think it is exactly the nasty situation you > described. > bcache takes I/O quickly while sending to SSD cache. SSD fills up, now > bcache can't handle IO as quickly and has to hang until the

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wed, Nov 30, 2016 at 9:47 AM, Marc MERLIN wrote: > > I gave it a thought again, I think it is exactly the nasty situation you > described. > bcache takes I/O quickly while sending to SSD cache. SSD fills up, now > bcache can't handle IO as quickly and has to hang until the SSD has been >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 10:01:10AM -0800, Linus Torvalds wrote: > On Tue, Nov 29, 2016 at 9:40 AM, Marc MERLIN wrote: > > > > In my case, it is a 5x 4TB HDD with > > software raid 5 < bcache < dmcrypt < btrfs > > It doesn't sound like the nasty situations I have seen

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 10:01:10AM -0800, Linus Torvalds wrote: > On Tue, Nov 29, 2016 at 9:40 AM, Marc MERLIN wrote: > > > > In my case, it is a 5x 4TB HDD with > > software raid 5 < bcache < dmcrypt < btrfs > > It doesn't sound like the nasty situations I have seen (particularly > with large

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 2016/11/30 8:01, Marc MERLIN wrote: > And, after 5H of copying, not a single hang, or USB disconnect, or anything. > Obviously this seems to point to other problems in the code, and I have no > idea which layer is a culprit here, but reducing the buffers absolutely > helped a lot. Maybe you

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 2016/11/30 8:01, Marc MERLIN wrote: > And, after 5H of copying, not a single hang, or USB disconnect, or anything. > Obviously this seems to point to other problems in the code, and I have no > idea which layer is a culprit here, but reducing the buffers absolutely > helped a lot. Maybe you

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 09:40:19AM -0800, Marc MERLIN wrote: > Thanks for the reply and suggestions. > > On Tue, Nov 29, 2016 at 09:07:03AM -0800, Linus Torvalds wrote: > > On Tue, Nov 29, 2016 at 8:34 AM, Marc MERLIN wrote: > > > Now, to be fair, this is not a new problem,

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 09:40:19AM -0800, Marc MERLIN wrote: > Thanks for the reply and suggestions. > > On Tue, Nov 29, 2016 at 09:07:03AM -0800, Linus Torvalds wrote: > > On Tue, Nov 29, 2016 at 8:34 AM, Marc MERLIN wrote: > > > Now, to be fair, this is not a new problem, it's just varying

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 9:40 AM, Marc MERLIN wrote: > > In my case, it is a 5x 4TB HDD with > software raid 5 < bcache < dmcrypt < btrfs It doesn't sound like the nasty situations I have seen (particularly with large USB flash storage - often high momentary speed for

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 9:40 AM, Marc MERLIN wrote: > > In my case, it is a 5x 4TB HDD with > software raid 5 < bcache < dmcrypt < btrfs It doesn't sound like the nasty situations I have seen (particularly with large USB flash storage - often high momentary speed for benchmarks, but slows down

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

Thanks for the reply and suggestions. On Tue, Nov 29, 2016 at 09:07:03AM -0800, Linus Torvalds wrote: > On Tue, Nov 29, 2016 at 8:34 AM, Marc MERLIN wrote: > > Now, to be fair, this is not a new problem, it's just varying degrees of > > bad and usually only happens when I do a

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

Thanks for the reply and suggestions. On Tue, Nov 29, 2016 at 09:07:03AM -0800, Linus Torvalds wrote: > On Tue, Nov 29, 2016 at 8:34 AM, Marc MERLIN wrote: > > Now, to be fair, this is not a new problem, it's just varying degrees of > > bad and usually only happens when I do a lot of I/O with

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 8:34 AM, Marc MERLIN wrote: > Now, to be fair, this is not a new problem, it's just varying degrees of > bad and usually only happens when I do a lot of I/O with btrfs. One situation where I've seen something like this happen is (a) lots and lots of

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 8:34 AM, Marc MERLIN wrote: > Now, to be fair, this is not a new problem, it's just varying degrees of > bad and usually only happens when I do a lot of I/O with btrfs. One situation where I've seen something like this happen is (a) lots and lots of dirty data queued up

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 05:25:15PM +0100, Michal Hocko wrote: > On Tue 22-11-16 17:38:01, Greg KH wrote: > > On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: > > > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > > >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 05:25:15PM +0100, Michal Hocko wrote: > On Tue 22-11-16 17:38:01, Greg KH wrote: > > On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: > > > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > > >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 05:07:51PM +0100, Michal Hocko wrote: > On Tue 29-11-16 07:55:37, Marc MERLIN wrote: > > On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > > > Marc, could you try this patch please? I think it should be pretty clear > > > it should help you but running it

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 29, 2016 at 05:07:51PM +0100, Michal Hocko wrote: > On Tue 29-11-16 07:55:37, Marc MERLIN wrote: > > On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > > > Marc, could you try this patch please? I think it should be pretty clear > > > it should help you but running it

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue 22-11-16 17:38:01, Greg KH wrote: > On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: > > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > > >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue 22-11-16 17:38:01, Greg KH wrote: > On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: > > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > > >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > Marc, could you try this patch please? I think it should be pretty clear > it should help you but running it through your use case would be more > than welcome before I ask Greg to take this to the 4.8 stable tree. > > Thanks! > >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > Marc, could you try this patch please? I think it should be pretty clear > it should help you but running it through your use case would be more > than welcome before I ask Greg to take this to the 4.8 stable tree. > > Thanks! > >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue 29-11-16 07:55:37, Marc MERLIN wrote: > On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > > Marc, could you try this patch please? I think it should be pretty clear > > it should help you but running it through your use case would be more > > than welcome before I ask Greg to

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue 29-11-16 07:55:37, Marc MERLIN wrote: > On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > > Marc, could you try this patch please? I think it should be pretty clear > > it should help you but running it through your use case would be more > > than welcome before I ask Greg to

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > Marc, could you try this patch please? I think it should be pretty clear > it should help you but running it through your use case would be more > than welcome before I ask Greg to take this to the 4.8 stable tree. I ran it overnight

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > Marc, could you try this patch please? I think it should be pretty clear > it should help you but running it through your use case would be more > than welcome before I ask Greg to take this to the 4.8 stable tree. I ran it overnight

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > Marc, could you try this patch please? I think it should be pretty clear > it should help you but running it through your use case would be more > than welcome before I ask Greg to take this to the 4.8 stable tree. This will take a

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 28, 2016 at 08:23:15AM +0100, Michal Hocko wrote: > Marc, could you try this patch please? I think it should be pretty clear > it should help you but running it through your use case would be more > than welcome before I ask Greg to take this to the 4.8 stable tree. This will take a

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/22/2016 10:46 PM, Simon Kirby wrote: On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: On 11/22/2016 05:06 PM, Marc MERLIN wrote: On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: 4.9rc5 however

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/22/2016 10:46 PM, Simon Kirby wrote: On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: On 11/22/2016 05:06 PM, Marc MERLIN wrote: On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: 4.9rc5 however

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

Marc, could you try this patch please? I think it should be pretty clear it should help you but running it through your use case would be more than welcome before I ask Greg to take this to the 4.8 stable tree. Thanks! On Wed 23-11-16 07:34:10, Michal Hocko wrote: [...] > commit

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

Marc, could you try this patch please? I think it should be pretty clear it should help you but running it through your use case would be more than welcome before I ask Greg to take this to the 4.8 stable tree. Thanks! On Wed 23-11-16 07:34:10, Michal Hocko wrote: [...] > commit

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/23/2016 07:34 AM, Michal Hocko wrote: On Tue 22-11-16 11:38:47, Linus Torvalds wrote: On Tue, Nov 22, 2016 at 8:14 AM, Vlastimil Babka wrote: Thanks a lot for the testing. So what do we do now about 4.8? (4.7 is already EOL AFAICS). - send the patch [1] as 4.8-only

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/23/2016 07:34 AM, Michal Hocko wrote: On Tue 22-11-16 11:38:47, Linus Torvalds wrote: On Tue, Nov 22, 2016 at 8:14 AM, Vlastimil Babka wrote: Thanks a lot for the testing. So what do we do now about 4.8? (4.7 is already EOL AFAICS). - send the patch [1] as 4.8-only stable. I think

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wed 23-11-16 14:53:12, Hillf Danton wrote: > On Wednesday, November 23, 2016 2:34 PM Michal Hocko wrote: > > @@ -3161,6 +3161,16 @@ should_compact_retry(struct alloc_context *ac, > > unsigned int order, int alloc_fla > > if (!order || order > PAGE_ALLOC_COSTLY_ORDER) > > return

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wed 23-11-16 14:53:12, Hillf Danton wrote: > On Wednesday, November 23, 2016 2:34 PM Michal Hocko wrote: > > @@ -3161,6 +3161,16 @@ should_compact_retry(struct alloc_context *ac, > > unsigned int order, int alloc_fla > > if (!order || order > PAGE_ALLOC_COSTLY_ORDER) > > return

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wednesday, November 23, 2016 2:34 PM Michal Hocko wrote: > @@ -3161,6 +3161,16 @@ should_compact_retry(struct alloc_context *ac, > unsigned int order, int alloc_fla > if (!order || order > PAGE_ALLOC_COSTLY_ORDER) > return false; > > +#ifdef CONFIG_COMPACTION > + /* >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Wednesday, November 23, 2016 2:34 PM Michal Hocko wrote: > @@ -3161,6 +3161,16 @@ should_compact_retry(struct alloc_context *ac, > unsigned int order, int alloc_fla > if (!order || order > PAGE_ALLOC_COSTLY_ORDER) > return false; > > +#ifdef CONFIG_COMPACTION > + /* >

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue 22-11-16 11:38:47, Linus Torvalds wrote: > On Tue, Nov 22, 2016 at 8:14 AM, Vlastimil Babka wrote: > > > > Thanks a lot for the testing. So what do we do now about 4.8? (4.7 is > > already EOL AFAICS). > > > > - send the patch [1] as 4.8-only stable. > > I think that's the

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue 22-11-16 11:38:47, Linus Torvalds wrote: > On Tue, Nov 22, 2016 at 8:14 AM, Vlastimil Babka wrote: > > > > Thanks a lot for the testing. So what do we do now about 4.8? (4.7 is > > already EOL AFAICS). > > > > - send the patch [1] as 4.8-only stable. > > I think that's the right thing to

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > 4.9rc5 however seems to be doing better, and

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > 4.9rc5 however seems to be doing better, and

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 22, 2016 at 8:14 AM, Vlastimil Babka wrote: > > Thanks a lot for the testing. So what do we do now about 4.8? (4.7 is > already EOL AFAICS). > > - send the patch [1] as 4.8-only stable. I think that's the right thing to do. It's pretty small, and the argument that it

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 22, 2016 at 8:14 AM, Vlastimil Babka wrote: > > Thanks a lot for the testing. So what do we do now about 4.8? (4.7 is > already EOL AFAICS). > > - send the patch [1] as 4.8-only stable. I think that's the right thing to do. It's pretty small, and the argument that it changes the oom

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 22, 2016 at 05:25:44PM +0100, Michal Hocko wrote: > currently AFAIR. I hate that Marc is not falling into that category but > is it really problem for you to run with 4.9? If we have more users Don't do anything just on my account. I had a problem, it's been fixed in 2 different ways:

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 22, 2016 at 05:25:44PM +0100, Michal Hocko wrote: > currently AFAIR. I hate that Marc is not falling into that category but > is it really problem for you to run with 4.9? If we have more users Don't do anything just on my account. I had a problem, it's been fixed in 2 different ways:

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > 4.9rc5 however seems to be doing better, and

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue, Nov 22, 2016 at 05:14:02PM +0100, Vlastimil Babka wrote: > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > 4.9rc5 however seems to be doing better, and

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue 22-11-16 17:14:02, Vlastimil Babka wrote: > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > 4.9rc5 however seems to be doing better, and is still running

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Tue 22-11-16 17:14:02, Vlastimil Babka wrote: > On 11/22/2016 05:06 PM, Marc MERLIN wrote: > > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > 4.9rc5 however seems to be doing better, and is still running

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/22/2016 05:06 PM, Marc MERLIN wrote: > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: 4.9rc5 however seems to be doing better, and is still running after 18 hours. However, I got a few page allocation

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/22/2016 05:06 PM, Marc MERLIN wrote: > On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: >> On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: 4.9rc5 however seems to be doing better, and is still running after 18 hours. However, I got a few page allocation

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > > > 4.9rc5 however seems to be doing better, and is still running after 18 > > > hours. However, I got a few page allocation failures as per below, but the > > > system

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 21, 2016 at 01:56:39PM -0800, Marc MERLIN wrote: > On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > > > 4.9rc5 however seems to be doing better, and is still running after 18 > > > hours. However, I got a few page allocation failures as per below, but the > > > system

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > > 4.9rc5 however seems to be doing better, and is still running after 18 > > hours. However, I got a few page allocation failures as per below, but the > > system seems to recover. > > Vlastimil, do you want me to continue the copy

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On Mon, Nov 21, 2016 at 10:50:20PM +0100, Vlastimil Babka wrote: > > 4.9rc5 however seems to be doing better, and is still running after 18 > > hours. However, I got a few page allocation failures as per below, but the > > system seems to recover. > > Vlastimil, do you want me to continue the copy

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/21/2016 04:43 PM, Marc MERLIN wrote: > Howdy, > > As a followup to https://plus.google.com/u/0/+MarcMERLIN/posts/A3FrLVo3kc6 > > http://pastebin.com/yJybSHNq and http://pastebin.com/B6xEH4Dw > show a system with plenty of RAM (24GB) falling over and killing inoccent > user space apps, a

Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

On 11/21/2016 04:43 PM, Marc MERLIN wrote: > Howdy, > > As a followup to https://plus.google.com/u/0/+MarcMERLIN/posts/A3FrLVo3kc6 > > http://pastebin.com/yJybSHNq and http://pastebin.com/B6xEH4Dw > show a system with plenty of RAM (24GB) falling over and killing inoccent > user space apps, a