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Message-ID: <VI2PR04MB11147642EB7D9B92FABBB6A3EE8A12@VI2PR04MB11147.eurprd04.prod.outlook.com> Date: Thu, 27 Mar 2025 08:20:03 +0000 From: Carlos Song <carlos.song@....com> To: Suren Baghdasaryan <surenb@...gle.com>, Kent Overstreet <kent.overstreet@...ux.dev> CC: "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>, "willy@...radead.org" <willy@...radead.org>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org> Subject: RE: [EXT] Re: Ask help about this patch b951aaff5035 " mm: enable page allocation tagging" > -----Original Message----- > From: Suren Baghdasaryan <surenb@...gle.com> > Sent: Thursday, March 20, 2025 11:50 PM > To: Kent Overstreet <kent.overstreet@...ux.dev> > Cc: Carlos Song <carlos.song@....com>; akpm@...ux-foundation.org; > willy@...radead.org; linux-mm@...ck.org; linux-kernel@...r.kernel.org; > linux-fsdevel@...r.kernel.org > Subject: [EXT] Re: Ask help about this patch b951aaff5035 " mm: enable page > allocation tagging" > > Caution: This is an external email. Please take care when clicking links or > opening attachments. When in doubt, report the message using the 'Report this > email' button > > > On Thu, Mar 20, 2025 at 4:24 AM Kent Overstreet <kent.overstreet@...ux.dev> > wrote: > > > > On Thu, Mar 20, 2025 at 11:07:41AM +0000, Carlos Song wrote: > > > Hi, all > > > > > > I found a 300ms~600ms IRQ off when writing 1Gb data to mmc device at > I.MX7d SDB board at Linux-kernel-v6.14. > > > But I test the same case at Linux-kernel-v6.7, this longest IRQ off time is only > 1ms~2ms. So the issue is introduced from v6.7~v6.14. > > > > > > Run this cmd to test: > > > dd if=/dev/zero of=/dev/mmcblk2p4 bs=4096 seek=12500 count=256000 > > > conv=fsync > > > > > > This issue looks from blkdev_buffered_write() function. Because when > > > I run this cmd with "oflag=direct" to use blkdev_direct_write(), I can not see > any long time IRQ off. > > > > > > Then I use Ftrace irqoff tracer to trace the longest IRQ off event, I found > some differences between v6.7 and v6.14: > > > In iomap_file_buffered_write(), __folio_alloc (in v6.7) is replaced by > _folio_alloc_noprof (in v6.14) by this patch. > > > The spinlock disabled IRQ ~300ms+. It looks there are some fixes for this > patch, but I still can see IRQ off 300ms+ at 6.14.0-rc7-next-20250319. > > Do you have CONFIG_MEM_ALLOC_PROFILING enabled and if so, does the issue > disappear if you disable CONFIG_MEM_ALLOC_PROFILING? > Sorry for my late reply and thank you for your quick reply! We don't enable CONFIG_MEM_ALLOC_PROFILING in kernel. > > > > > > Do I trigger one bug? I know little about mem so I have to report it and hope > I can get some help or guide. > > > I put my ftrace log at the mail tail to help trace and explain. > > > > Did you track down which spinlock? > > > > > > > > commit b951aaff503502a7fe066eeed2744ba8a6413c89 > > > Author: Suren Baghdasaryan > surenb@...gle.com<mailto:surenb@...gle.com> > > > Date: Thu Mar 21 09:36:40 2024 -0700 > > > > > > mm: enable page allocation tagging > > > > > > Redefine page allocators to record allocation tags upon their > invocation. > > > Instrument post_alloc_hook and free_pages_prepare to modify > current > > > allocation tag. > > > > > > [surenb@...gle.com: undo _noprof additions in the documentation] > > > Link: > https://lkml.kern/ > el.org%2Fr%2F20240326231453.1206227-3-surenb%40google.com&data=05% > 7C02%7Ccarlos.song%40nxp.com%7Cd28a491e16da40a24a6508dd67c6e95b% > 7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C638780826228162008 > %7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMD > AwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7 > C&sdata=jCoaXCuYC2cLtjSdHRJn73p0wrrtVc2I36Z16R1dsZI%3D&reserved=0 > > > Link: > https://lkml.kern/ > el.org%2Fr%2F20240321163705.3067592-19-surenb%40google.com&data=05 > %7C02%7Ccarlos.song%40nxp.com%7Cd28a491e16da40a24a6508dd67c6e95b > %7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63878082622817871 > 6%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuM > DAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C% > 7C&sdata=6ey4%2BMmBB%2FEN%2FIwSrUaWhZFql%2BNYyuuqkW6mYe9weN > k%3D&reserved=0 > > > Signed-off-by: Suren Baghdasaryan > surenb@...gle.com<mailto:surenb@...gle.com> > > > Co-developed-by: Kent Overstreet > kent.overstreet@...ux.dev<mailto:kent.overstreet@...ux.dev> > > > Signed-off-by: Kent Overstreet > kent.overstreet@...ux.dev<mailto:kent.overstreet@...ux.dev> > > > Reviewed-by: Kees Cook > keescook@...omium.org<mailto:keescook@...omium.org> > > > Tested-by: Kees Cook > keescook@...omium.org<mailto:keescook@...omium.org> > > > Cc: Alexander Viro > viro@...iv.linux.org.uk<mailto:viro@...iv.linux.org.uk> > > > Cc: Alex Gaynor > alex.gaynor@...il.com<mailto:alex.gaynor@...il.com> > > > Cc: Alice Ryhl aliceryhl@...gle.com<mailto:aliceryhl@...gle.com> > > > Cc: Andreas Hindborg > a.hindborg@...sung.com<mailto:a.hindborg@...sung.com> > > > Cc: Benno Lossin > benno.lossin@...ton.me<mailto:benno.lossin@...ton.me> > > > Cc: "Björn Roy Baron" > bjorn3_gh@...tonmail.com<mailto:bjorn3_gh@...tonmail.com> > > > Cc: Boqun Feng > boqun.feng@...il.com<mailto:boqun.feng@...il.com> > > > Cc: Christoph Lameter cl@...ux.com<mailto:cl@...ux.com> > > > Cc: Dennis Zhou dennis@...nel.org<mailto:dennis@...nel.org> > > > Cc: Gary Guo gary@...yguo.net<mailto:gary@...yguo.net> > > > Cc: Miguel Ojeda ojeda@...nel.org<mailto:ojeda@...nel.org> > > > Cc: Pasha Tatashin > pasha.tatashin@...een.com<mailto:pasha.tatashin@...een.com> > > > Cc: Peter Zijlstra > peterz@...radead.org<mailto:peterz@...radead.org> > > > Cc: Tejun Heo tj@...nel.org<mailto:tj@...nel.org> > > > Cc: Vlastimil Babka vbabka@...e.cz<mailto:vbabka@...e.cz> > > > Cc: Wedson Almeida Filho > wedsonaf@...il.com<mailto:wedsonaf@...il.com> > > > Signed-off-by: Andrew Morton > > > akpm@...ux-foundation.org<mailto:akpm@...ux-foundation.org> > > > > > > > > > Ftrace irqoff tracer shows detail: > > > At v6.14: > > > # tracer: irqsoff > > > # > > > # irqsoff latency trace v1.1.5 on 6.14.0-rc7-next-20250319 # > > > -------------------------------------------------------------------- > > > # latency: 279663 us, #21352/21352, CPU#0 | (M:NONE VP:0, KP:0, SP:0 > HP:0 #P:2) > > > # ----------------- > > > # | task: dd-805 (uid:0 nice:0 policy:0 rt_prio:0) > > > # ----------------- > > > # => started at: __rmqueue_pcplist > > > # => ended at: _raw_spin_unlock_irqrestore > > > # > > > # > > > # _------=> CPU# > > > # / _-----=> irqs-off/BH-disabled > > > # | / _----=> need-resched > > > # || / _---=> hardirq/softirq > > > # ||| / _--=> preempt-depth > > > # |||| / _-=> migrate-disable > > > # ||||| / delay > > > # cmd pid |||||| time | caller > > > # \ / |||||| \ | / > > > dd-805 0d.... 1us : __rmqueue_pcplist > > > dd-805 0d.... 3us : _raw_spin_trylock > <-__rmqueue_pcplist > > > dd-805 0d.... 7us : __mod_zone_page_state > <-__rmqueue_pcplist > > > dd-805 0d.... 10us : __mod_zone_page_state > <-__rmqueue_pcplist > > > dd-805 0d.... 12us : __mod_zone_page_state > <-__rmqueue_pcplist > > > dd-805 0d.... 15us : __mod_zone_page_state > <-__rmqueue_pcplist > > > dd-805 0d.... 17us : __mod_zone_page_state > <-__rmqueue_pcplist > > > dd-805 0d.... 19us : __mod_zone_page_state > <-__rmqueue_pcplist > > > ... > > > dd-805 0d.... 1535us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 1538us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 1539us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 1542us+: try_to_claim_block > <-__rmqueue_pcplist > > > dd-805 0d.... 1597us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 1599us+: try_to_claim_block > <-__rmqueue_pcplist > > > dd-805 0d.... 1674us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 1676us+: try_to_claim_block > <-__rmqueue_pcplist > > > dd-805 0d.... 1716us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 1718us+: try_to_claim_block > <-__rmqueue_pcplist > > > dd-805 0d.... 1801us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 1803us+: try_to_claim_block > <-__rmqueue_pcplist > > > ... > > > dd-805 0d.... 279555us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 279556us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 279558us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 279560us+: try_to_claim_block > <-__rmqueue_pcplist > > > dd-805 0d.... 279616us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 279618us : __mod_zone_page_state > <-__rmqueue_pcplist > > > dd-805 0d.... 279620us : find_suitable_fallback > <-__rmqueue_pcplist > > > ... > > > dd-805 0d.... 279658us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-805 0d.... 279660us : _raw_spin_unlock_irqrestore > <-__rmqueue_pcplist > > > dd-805 0d.... 279662us : _raw_spin_unlock_irqrestore > > > dd-805 0d.... 279666us+: trace_hardirqs_on > <-_raw_spin_unlock_irqrestore > > > dd-805 0d.... 279712us : <stack trace> > > > => get_page_from_freelist > > > => __alloc_frozen_pages_noprof > > > => __folio_alloc_noprof > > > => __filemap_get_folio > > > => iomap_write_begin > > > => iomap_file_buffered_write > > > => blkdev_write_iter > > > => vfs_write > > > => ksys_write > > > => ret_fast_syscall > > > > > > At v6.7: > > > # tracer: irqsoff > > > # > > > # irqsoff latency trace v1.1.5 on 6.7.0 # > > > -------------------------------------------------------------------- > > > # latency: 2477 us, #146/146, CPU#0 | (M:server VP:0, KP:0, SP:0 HP:0 #P:2) > > > # ----------------- > > > # | task: dd-808 (uid:0 nice:0 policy:0 rt_prio:0) > > > # ----------------- > > > # => started at: _raw_spin_lock_irqsave > > > # => ended at: _raw_spin_unlock_irqrestore > > > # > > > # > > > # _------=> CPU# > > > # / _-----=> irqs-off/BH-disabled > > > # | / _----=> need-resched > > > # || / _---=> hardirq/softirq > > > # ||| / _--=> preempt-depth > > > # |||| / _-=> migrate-disable > > > # ||||| / delay > > > # cmd pid |||||| time | caller > > > # \ / |||||| \ | / > > > dd-808 0d.... 1us!: _raw_spin_lock_irqsave > > > dd-808 0d.... 186us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 189us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 191us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 192us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 194us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 196us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 199us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 203us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 330us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 332us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 334us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 336us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 338us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 339us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 341us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 343us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 479us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 481us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 483us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 485us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 486us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 488us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 490us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 492us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 630us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 632us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 634us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 636us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 638us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 640us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 642us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 644us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 771us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 773us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 775us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 777us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 778us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 780us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 782us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 784us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 911us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 913us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 915us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 916us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 918us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 920us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 922us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 924us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 1055us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1058us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1059us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1061us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1063us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1065us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1066us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1068us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 1194us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1196us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1198us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1200us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1202us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1203us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1205us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1208us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 1333us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1335us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1337us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1339us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1341us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1342us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1344us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1346us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 1480us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1482us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1484us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1486us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1488us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1490us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1492us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1494us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 1621us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1623us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1625us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1627us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1629us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1630us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1632us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1634us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 1761us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1763us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1765us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1766us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1768us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1770us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1772us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1774us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 1900us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1902us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1903us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1905us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1907us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1909us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1911us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 1913us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 2038us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2040us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2042us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2044us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2046us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2047us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2049us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2051us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2053us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2055us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 2175us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2176us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2178us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2180us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2182us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2183us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2185us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2187us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2189us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2191us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2192us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2194us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2196us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 2323us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2325us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2327us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2328us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2330us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2332us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2334us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2335us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2337us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2339us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2341us : find_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2343us : steal_suitable_fallback > <-__rmqueue_pcplist > > > dd-808 0d.... 2345us!: move_freepages_block > <-steal_suitable_fallback > > > dd-808 0d.... 2470us : __mod_zone_page_state > <-__rmqueue_pcplist > > > dd-808 0d.... 2473us : _raw_spin_unlock_irqrestore > <-__rmqueue_pcplist > > > dd-808 0d.... 2476us : _raw_spin_unlock_irqrestore > > > dd-808 0d.... 2479us+: tracer_hardirqs_on > <-_raw_spin_unlock_irqrestore > > > dd-808 0d.... 2520us : <stack trace> > > > => get_page_from_freelist > > > => __alloc_pages > > > => __folio_alloc > > > => __filemap_get_folio > > > => iomap_write_begin > > > => iomap_file_buffered_write > > > => blkdev_write_iter > > > => vfs_write > > > => ksys_write > > > => ret_fast_syscall > > > > > > Best Regard > > > Carlos Song > > >
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