search for: zs_page_migrate

Displaying 17 results from an estimated 17 matches for "zs_page_migrate".

2016 Jun 15
0
[PATCH v7 00/12] Support non-lru page migration
...od usbcore usb_common [ 315.146785] CPU: 3 PID: 38 Comm: khugepaged Not tainted 4.7.0-rc3-next-20160614-dbg-00004-ga1c2cbc-dirty #488 [ 315.146841] task: ffff8800bfaf2900 ti: ffff880112468000 task.ti: ffff880112468000 [ 315.146859] RIP: 0010:[<ffffffffa02c413d>] [<ffffffffa02c413d>] zs_page_migrate+0x355/0xaa0 [zsmalloc] [ 315.146892] RSP: 0000:ffff88011246f138 EFLAGS: 00010293 [ 315.146906] RAX: 736761742d6f6e2c RBX: ffff880017ad9a80 RCX: 0000000000000000 [ 315.146924] RDX: 1ffffffff064d704 RSI: ffff88000511469a RDI: ffffffff8326ba20 [ 315.146942] RBP: ffff88011246f328 R08: 000000000000...
2016 Jun 15
2
[PATCH v7 00/12] Support non-lru page migration
...common > [ 315.146785] CPU: 3 PID: 38 Comm: khugepaged Not tainted 4.7.0-rc3-next-20160614-dbg-00004-ga1c2cbc-dirty #488 > [ 315.146841] task: ffff8800bfaf2900 ti: ffff880112468000 task.ti: ffff880112468000 > [ 315.146859] RIP: 0010:[<ffffffffa02c413d>] [<ffffffffa02c413d>] zs_page_migrate+0x355/0xaa0 [zsmalloc] Thanks for the report! zs_page_migrate+0x355? Could you tell me what line is it? It seems to be related to obj_to_head. Could you test with [zsmalloc: keep first object offset in struct page] in mmotm? > [ 315.146892] RSP: 0000:ffff88011246f138 EFLAGS: 00010293 &gt...
2016 Jun 15
2
[PATCH v7 00/12] Support non-lru page migration
...common > [ 315.146785] CPU: 3 PID: 38 Comm: khugepaged Not tainted 4.7.0-rc3-next-20160614-dbg-00004-ga1c2cbc-dirty #488 > [ 315.146841] task: ffff8800bfaf2900 ti: ffff880112468000 task.ti: ffff880112468000 > [ 315.146859] RIP: 0010:[<ffffffffa02c413d>] [<ffffffffa02c413d>] zs_page_migrate+0x355/0xaa0 [zsmalloc] Thanks for the report! zs_page_migrate+0x355? Could you tell me what line is it? It seems to be related to obj_to_head. Could you test with [zsmalloc: keep first object offset in struct page] in mmotm? > [ 315.146892] RSP: 0000:ffff88011246f138 EFLAGS: 00010293 &gt...
2016 Mar 21
0
[PATCH v2 17/18] zsmalloc: migrate tail pages in zspage
...*page, isolate_mode_t mode) VM_BUG_ON_PAGE(!PageLocked(page), page); VM_BUG_ON_PAGE(PageIsolated(page), page); /* - * In this implementation, it allows only first page migration. + * first_page will not be destroyed by PG_lock of @page but it could + * be migrated out. For prohibiting it, zs_page_migrate calls + * trylock_zspage so it closes the race. */ - VM_BUG_ON_PAGE(!is_first_page(page), page); - first_page = page; + first_page = get_first_page(page); /* * Without class lock, fullness is meaningless while constant @@ -2228,9 +2300,18 @@ bool zs_page_isolate(struct page *page, isolat...
2016 Mar 21
2
[PATCH v2 17/18] zsmalloc: migrate tail pages in zspage
Hi Minchan, [auto build test WARNING on next-20160318] [cannot apply to v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Minchan-Kim/Support-non-lru-page-migration/20160321-143339 coccinelle warnings: (new ones prefixed by >>) >>
2016 Mar 21
2
[PATCH v2 17/18] zsmalloc: migrate tail pages in zspage
Hi Minchan, [auto build test WARNING on next-20160318] [cannot apply to v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Minchan-Kim/Support-non-lru-page-migration/20160321-143339 coccinelle warnings: (new ones prefixed by >>) >>
2016 May 31
7
[PATCH v7 00/12] Support non-lru page migration
Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and easy fork fail. The problem was fragmentation caused by zram and GPU driver mainly. With memory pressure, their pages were spread out all of pageblock and it cannot be migrated with current compaction algorithm which supports only LRU pages. In the end, compaction cannot
2016 May 31
7
[PATCH v7 00/12] Support non-lru page migration
Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and easy fork fail. The problem was fragmentation caused by zram and GPU driver mainly. With memory pressure, their pages were spread out all of pageblock and it cannot be migrated with current compaction algorithm which supports only LRU pages. In the end, compaction cannot
2016 Jun 16
2
[PATCH v7 00/12] Support non-lru page migration
...46785] CPU: 3 PID: 38 Comm: khugepaged Not tainted 4.7.0-rc3-next-20160614-dbg-00004-ga1c2cbc-dirty #488 > > > [ 315.146841] task: ffff8800bfaf2900 ti: ffff880112468000 task.ti: ffff880112468000 > > > [ 315.146859] RIP: 0010:[<ffffffffa02c413d>] [<ffffffffa02c413d>] zs_page_migrate+0x355/0xaa0 [zsmalloc] > > > > Thanks for the report! > > > > zs_page_migrate+0x355? Could you tell me what line is it? > > > > It seems to be related to obj_to_head. > > reproduced. a bit different call stack this time. but the problem is > still th...
2016 Jun 16
2
[PATCH v7 00/12] Support non-lru page migration
...46785] CPU: 3 PID: 38 Comm: khugepaged Not tainted 4.7.0-rc3-next-20160614-dbg-00004-ga1c2cbc-dirty #488 > > > [ 315.146841] task: ffff8800bfaf2900 ti: ffff880112468000 task.ti: ffff880112468000 > > > [ 315.146859] RIP: 0010:[<ffffffffa02c413d>] [<ffffffffa02c413d>] zs_page_migrate+0x355/0xaa0 [zsmalloc] > > > > Thanks for the report! > > > > zs_page_migrate+0x355? Could you tell me what line is it? > > > > It seems to be related to obj_to_head. > > reproduced. a bit different call stack this time. but the problem is > still th...
2016 Jun 16
0
[PATCH v7 00/12] Support non-lru page migration
...; [ 315.146785] CPU: 3 PID: 38 Comm: khugepaged Not tainted 4.7.0-rc3-next-20160614-dbg-00004-ga1c2cbc-dirty #488 > > [ 315.146841] task: ffff8800bfaf2900 ti: ffff880112468000 task.ti: ffff880112468000 > > [ 315.146859] RIP: 0010:[<ffffffffa02c413d>] [<ffffffffa02c413d>] zs_page_migrate+0x355/0xaa0 [zsmalloc] > > Thanks for the report! > > zs_page_migrate+0x355? Could you tell me what line is it? > > It seems to be related to obj_to_head. reproduced. a bit different call stack this time. but the problem is still the same. zs_compact() ... 6371: e8...
2016 Mar 11
31
[PATCH v1 00/19] Support non-lru page migration
Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.
2016 Mar 11
31
[PATCH v1 00/19] Support non-lru page migration
Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.
2016 Mar 21
22
[PATCH v2 00/18] Support non-lru page migration
Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.
2016 Mar 21
22
[PATCH v2 00/18] Support non-lru page migration
Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.
2016 Mar 30
33
[PATCH v3 00/16] Support non-lru page migration
Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.
2016 Mar 30
33
[PATCH v3 00/16] Support non-lru page migration
Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.