From: Tejun Heo <tj@kernel.org> To: Johannes Weiner <hannes@cmpxchg.org> Cc: Kent Overstreet <kent.overstreet@linux.dev>, Michal Hocko <mhocko@suse.com>, Suren Baghdasaryan <surenb@google.com>, akpm@linux-foundation.org, vbabka@suse.cz, roman.gushchin@linux.dev, mgorman@suse.de, dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com, corbet@lwn.net, void@manifault.com, peterz@infradead.org, juri.lelli@redhat.com, ldufour@linux.ibm.com, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org, peterx@redhat.com, david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org, masahiroy@kernel.org, nathan@kernel.org, dennis@kernel.org, muchun.song@linux.dev, rppt@kernel.org, paulmck@kernel.org, pasha.tatashin@soleen.com, yosryahmed@google.com, yuzhao@google.com, dhowells@redhat.com, hughd@google.com, andreyknvl@gmail.com, keescook@chromium.org, ndesaulniers@google.com, gregkh@linuxfoundation.org, ebiggers@google.com, ytcoode@gmail.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, bristot@redhat.com, vschneid@redhat.com, cl@linux.com, penberg@kernel.org, iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com, elver@google.com, dvyukov@google.com, shakeelb@google.com, songmuchun@bytedance.com, jbaron@akamai.com, rientjes@google.com, minchan@google.com, kaleshsingh@google.com, kernel-team@android.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, kasan-dev@googlegroups.com, cgroups@vger.kernel.org, Alexei Starovoitov <ast@kernel.org>, Andrii Nakryiko <andrii@kernel.org> Subject: Re: [PATCH 00/40] Memory allocation profiling Date: Wed, 3 May 2023 08:19:24 -1000 [thread overview] Message-ID: <ZFKlrP7nLn93iIRf@slm.duckdns.org> (raw) In-Reply-To: <20230503180726.GA196054@cmpxchg.org> Hello, On Wed, May 03, 2023 at 02:07:26PM -0400, Johannes Weiner wrote: ... > > * Because tracking starts when the script starts running, it doesn't know > > anything which has happened upto that point, so you gotta pay attention to > > handling e.g. handling frees which don't match allocs. It's kinda annoying > > but not a huge problem usually. There are ways to build in BPF progs into > > the kernel and load it early but I haven't experiemnted with it yet > > personally. > > Yeah, early loading is definitely important, especially before module > loading etc. > > One common usecase is that we see a machine in the wild with a high > amount of kernel memory disappearing somewhere that isn't voluntarily > reported in vmstat/meminfo. Reproducing it isn't always > practical. Something that records early and always (with acceptable > runtime overhead) would be the holy grail. > > Matching allocs to frees is doable using the pfn as the key for pages, > and virtual addresses for slab objects. > > The biggest issue I had when I tried with bpf was losing updates to > the map. IIRC there is some trylocking going on to avoid deadlocks > from nested contexts (alloc interrupted, interrupt frees). It doesn't > sound like an unsolvable problem, though. (cc'ing Alexei and Andrii) This is the same thing that I hit with sched_ext. BPF plugged it for struct_ops but I wonder whether it can be done for specific maps / progs - ie. just declare that a given map or prog is not to be accessed from NMI and bypass the trylock deadlock avoidance mechanism. But, yeah, this should be addressed from BPF side. > Another minor thing was the stack trace map exploding on a basically > infinite number of unique interrupt stacks. This could probably also > be solved by extending the trace extraction API to cut the frames off > at the context switch boundary. > > Taking a step back though, given the multitude of allocation sites in > the kernel, it's a bit odd that the only accounting we do is the tiny > fraction of voluntary vmstat/meminfo reporting. We try to cover the > biggest consumers with this of course, but it's always going to be > incomplete and is maintenance overhead too. There are on average > several gigabytes in unknown memory (total - known vmstats) on our > machines. It's difficult to detect regressions easily. And it's per > definition the unexpected cornercases that are the trickiest to track > down. So it might be doable with BPF, but it does feel like the kernel > should do a better job of tracking out of the box and without > requiring too much plumbing and somewhat fragile kernel allocation API > tracking and probing from userspace. Yeah, easy / default visibility argument does make sense to me. Thanks. -- tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> To: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org> Cc: Kent Overstreet <kent.overstreet-fxUVXftIFDnyG1zEObXtfA@public.gmane.org>, Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>, Suren Baghdasaryan <surenb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, vbabka-AlSwsSmVLrQ@public.gmane.org, roman.gushchin-fxUVXftIFDnyG1zEObXtfA@public.gmane.org, mgorman-l3A5Bk7waGM@public.gmane.org, dave-h16yJtLeMjHk1uMJSBkQmQ@public.gmane.org, willy-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, liam.howlett-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, corbet-T1hC0tSOHrs@public.gmane.org, void-gq6j2QGBifHby3iVrkZq2A@public.gmane.org, peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, juri.lelli-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, ldufour-tEXmvtCZX7AybS5Ee8rs3A@public.gmane.org, catalin.marinas-5wv7dgnIgG8@public.gmane.org, will-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, arnd-r2nGTMty4D4@public.gmane.org, tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, dave.hansen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, peterx-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, david-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org, mcgrof-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, masahiroy-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, nathan-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, dennis-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, muchun.song-fxUVXftIFDnyG1zEObXtfA@public.gmane.org, rppt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, paulmck-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pasha.tatashin-2EmBfe737+LQT0dZR+AlfA@public.gmane.org, yosryahmed-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, yuzhao-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, dhowells@r Subject: Re: [PATCH 00/40] Memory allocation profiling Date: Wed, 3 May 2023 08:19:24 -1000 [thread overview] Message-ID: <ZFKlrP7nLn93iIRf@slm.duckdns.org> (raw) In-Reply-To: <20230503180726.GA196054-druUgvl0LCNAfugRpC6u6w@public.gmane.org> Hello, On Wed, May 03, 2023 at 02:07:26PM -0400, Johannes Weiner wrote: ... > > * Because tracking starts when the script starts running, it doesn't know > > anything which has happened upto that point, so you gotta pay attention to > > handling e.g. handling frees which don't match allocs. It's kinda annoying > > but not a huge problem usually. There are ways to build in BPF progs into > > the kernel and load it early but I haven't experiemnted with it yet > > personally. > > Yeah, early loading is definitely important, especially before module > loading etc. > > One common usecase is that we see a machine in the wild with a high > amount of kernel memory disappearing somewhere that isn't voluntarily > reported in vmstat/meminfo. Reproducing it isn't always > practical. Something that records early and always (with acceptable > runtime overhead) would be the holy grail. > > Matching allocs to frees is doable using the pfn as the key for pages, > and virtual addresses for slab objects. > > The biggest issue I had when I tried with bpf was losing updates to > the map. IIRC there is some trylocking going on to avoid deadlocks > from nested contexts (alloc interrupted, interrupt frees). It doesn't > sound like an unsolvable problem, though. (cc'ing Alexei and Andrii) This is the same thing that I hit with sched_ext. BPF plugged it for struct_ops but I wonder whether it can be done for specific maps / progs - ie. just declare that a given map or prog is not to be accessed from NMI and bypass the trylock deadlock avoidance mechanism. But, yeah, this should be addressed from BPF side. > Another minor thing was the stack trace map exploding on a basically > infinite number of unique interrupt stacks. This could probably also > be solved by extending the trace extraction API to cut the frames off > at the context switch boundary. > > Taking a step back though, given the multitude of allocation sites in > the kernel, it's a bit odd that the only accounting we do is the tiny > fraction of voluntary vmstat/meminfo reporting. We try to cover the > biggest consumers with this of course, but it's always going to be > incomplete and is maintenance overhead too. There are on average > several gigabytes in unknown memory (total - known vmstats) on our > machines. It's difficult to detect regressions easily. And it's per > definition the unexpected cornercases that are the trickiest to track > down. So it might be doable with BPF, but it does feel like the kernel > should do a better job of tracking out of the box and without > requiring too much plumbing and somewhat fragile kernel allocation API > tracking and probing from userspace. Yeah, easy / default visibility argument does make sense to me. Thanks. -- tejun
next prev parent reply other threads:[~2023-05-03 18:19 UTC|newest] Thread overview: 320+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-05-01 16:54 [PATCH 00/40] Memory allocation profiling Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 01/40] lib/string_helpers: Drop space in string_get_size's output Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 18:13 ` Davidlohr Bueso 2023-05-01 18:13 ` Davidlohr Bueso 2023-05-01 19:35 ` Kent Overstreet 2023-05-01 19:35 ` Kent Overstreet 2023-05-01 19:57 ` Andy Shevchenko 2023-05-01 19:57 ` Andy Shevchenko 2023-05-01 21:16 ` Kent Overstreet 2023-05-01 21:16 ` Kent Overstreet 2023-05-01 21:33 ` Liam R. Howlett 2023-05-01 21:33 ` Liam R. Howlett 2023-05-02 0:11 ` Kent Overstreet 2023-05-02 0:11 ` Kent Overstreet 2023-05-02 0:53 ` Kent Overstreet 2023-05-02 0:53 ` Kent Overstreet [not found] ` <ZFAUj+Q+hP7cWs4w-jC9Py7bek1znysI04z7BkA@public.gmane.org> 2023-05-02 2:22 ` James Bottomley 2023-05-02 2:22 ` James Bottomley 2023-05-02 3:17 ` Kent Overstreet 2023-05-02 3:17 ` Kent Overstreet 2023-05-02 5:33 ` Andy Shevchenko 2023-05-02 5:33 ` Andy Shevchenko 2023-05-02 6:21 ` Kent Overstreet 2023-05-02 6:21 ` Kent Overstreet 2023-05-02 15:19 ` Andy Shevchenko 2023-05-02 15:19 ` Andy Shevchenko 2023-05-03 2:07 ` Kent Overstreet 2023-05-03 2:07 ` Kent Overstreet 2023-05-03 6:30 ` Andy Shevchenko 2023-05-03 6:30 ` Andy Shevchenko 2023-05-03 7:12 ` Kent Overstreet 2023-05-03 7:12 ` Kent Overstreet 2023-05-03 9:12 ` Andy Shevchenko 2023-05-03 9:12 ` Andy Shevchenko 2023-05-03 9:16 ` Kent Overstreet 2023-05-03 9:16 ` Kent Overstreet 2023-05-02 11:42 ` James Bottomley 2023-05-02 11:42 ` James Bottomley 2023-05-02 22:50 ` Dave Chinner 2023-05-02 22:50 ` Dave Chinner 2023-05-03 9:28 ` Vlastimil Babka 2023-05-03 9:28 ` Vlastimil Babka 2023-05-03 9:44 ` Andy Shevchenko 2023-05-03 9:44 ` Andy Shevchenko 2023-05-03 12:15 ` James Bottomley 2023-05-03 12:15 ` James Bottomley 2023-05-02 7:55 ` Jani Nikula 2023-05-02 7:55 ` Jani Nikula 2023-05-01 16:54 ` [PATCH 02/40] scripts/kallysms: Always include __start and __stop symbols Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 03/40] fs: Convert alloc_inode_sb() to a macro Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-02 12:35 ` Petr Tesařík 2023-05-02 12:35 ` Petr Tesařík 2023-05-02 19:57 ` Kent Overstreet 2023-05-02 19:57 ` Kent Overstreet 2023-05-02 20:20 ` Petr Tesařík 2023-05-02 20:20 ` Petr Tesařík 2023-05-01 16:54 ` [PATCH 04/40] nodemask: Split out include/linux/nodemask_types.h Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 05/40] prandom: Remove unused include Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 06/40] lib/string.c: strsep_no_empty() Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-02 12:37 ` Petr Tesařík 2023-05-02 12:37 ` Petr Tesařík 2023-05-01 16:54 ` [PATCH 07/40] Lazy percpu counters Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 19:17 ` Randy Dunlap 2023-05-01 19:17 ` Randy Dunlap 2023-05-01 16:54 ` [PATCH 08/40] mm: introduce slabobj_ext to support slab object extensions Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 09/40] mm: introduce __GFP_NO_OBJ_EXT flag to selectively prevent slabobj_ext creation Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-02 12:50 ` Petr Tesařík 2023-05-02 12:50 ` Petr Tesařík 2023-05-02 18:33 ` Suren Baghdasaryan 2023-05-02 18:33 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 10/40] mm/slab: introduce SLAB_NO_OBJ_EXT to avoid obj_ext creation Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 11/40] mm: prevent slabobj_ext allocations for slabobj_ext and kmem_cache objects Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 12/40] slab: objext: introduce objext_flags as extension to page_memcg_data_flags Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 13/40] lib: code tagging framework Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 14/40] lib: code tagging module support Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 15/40] lib: prevent module unloading if memory is not freed Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 16/40] lib: code tagging query helper functions Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 17/40] lib: add allocation tagging support for memory allocation profiling Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 18/40] lib: introduce support for page allocation tagging Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 19/40] change alloc_pages name in dma_map_ops to avoid name conflicts Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-02 15:50 ` Petr Tesařík 2023-05-02 15:50 ` Petr Tesařík 2023-05-02 18:38 ` Suren Baghdasaryan 2023-05-02 18:38 ` Suren Baghdasaryan 2023-05-02 20:09 ` Petr Tesařík 2023-05-02 20:09 ` Petr Tesařík 2023-05-02 20:18 ` Kent Overstreet 2023-05-02 20:18 ` Kent Overstreet 2023-05-02 20:24 ` Suren Baghdasaryan 2023-05-02 20:24 ` Suren Baghdasaryan 2023-05-02 20:39 ` Petr Tesařík 2023-05-02 20:39 ` Petr Tesařík 2023-05-02 20:41 ` Suren Baghdasaryan 2023-05-02 20:41 ` Suren Baghdasaryan 2023-05-03 16:25 ` Steven Rostedt 2023-05-03 16:25 ` Steven Rostedt 2023-05-03 18:03 ` Suren Baghdasaryan 2023-05-03 18:03 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 20/40] mm: enable page allocation tagging Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 21/40] mm/page_ext: enable early_page_ext when CONFIG_MEM_ALLOC_PROFILING_DEBUG=y Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 22/40] mm: create new codetag references during page splitting Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 23/40] lib: add codetag reference into slabobj_ext Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 24/40] mm/slab: add allocation accounting into slab allocation and free paths Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 25/40] mm/slab: enable slab allocation tagging for kmalloc and friends Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 26/40] mm/slub: Mark slab_free_freelist_hook() __always_inline Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 27/40] mempool: Hook up to memory allocation profiling Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 28/40] timekeeping: Fix a circular include dependency Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-02 15:50 ` Thomas Gleixner 2023-05-02 15:50 ` Thomas Gleixner 2023-05-01 16:54 ` [PATCH 29/40] mm: percpu: Introduce pcpuobj_ext Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 30/40] mm: percpu: Add codetag reference into pcpuobj_ext Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 31/40] mm: percpu: enable per-cpu allocation tagging Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 32/40] arm64: Fix circular header dependency Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 33/40] move stack capture functionality into a separate function for reuse Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 34/40] lib: code tagging context capture support Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-03 7:35 ` Michal Hocko 2023-05-03 7:35 ` Michal Hocko 2023-05-03 15:18 ` Suren Baghdasaryan 2023-05-03 15:18 ` Suren Baghdasaryan 2023-05-03 15:26 ` Dave Hansen 2023-05-03 15:26 ` Dave Hansen 2023-05-03 19:45 ` Suren Baghdasaryan 2023-05-03 19:45 ` Suren Baghdasaryan 2023-05-04 8:04 ` Michal Hocko 2023-05-04 8:04 ` Michal Hocko 2023-05-04 14:31 ` Suren Baghdasaryan 2023-05-04 14:31 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 35/40] lib: implement context capture support for tagged allocations Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-03 7:39 ` Michal Hocko 2023-05-03 7:39 ` Michal Hocko 2023-05-03 15:24 ` Suren Baghdasaryan 2023-05-03 15:24 ` Suren Baghdasaryan 2023-05-04 8:09 ` Michal Hocko 2023-05-04 8:09 ` Michal Hocko 2023-05-04 16:22 ` Suren Baghdasaryan 2023-05-04 16:22 ` Suren Baghdasaryan 2023-05-05 8:40 ` Michal Hocko 2023-05-05 8:40 ` Michal Hocko 2023-05-05 18:10 ` Suren Baghdasaryan 2023-05-05 18:10 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 36/40] lib: add memory allocations report in show_mem() Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 37/40] codetag: debug: skip objext checking when it's for objext itself Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 38/40] codetag: debug: mark codetags for reserved pages as empty Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 39/40] codetag: debug: introduce OBJEXTS_ALLOC_FAIL to mark failed slab_ext allocations Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 16:54 ` [PATCH 40/40] MAINTAINERS: Add entries for code tagging and memory allocation profiling Suren Baghdasaryan 2023-05-01 16:54 ` Suren Baghdasaryan 2023-05-01 17:47 ` [PATCH 00/40] Memory " Roman Gushchin 2023-05-01 17:47 ` Roman Gushchin 2023-05-01 18:08 ` Suren Baghdasaryan 2023-05-01 18:08 ` Suren Baghdasaryan 2023-05-01 18:14 ` Roman Gushchin 2023-05-01 18:14 ` Roman Gushchin 2023-05-01 19:37 ` Kent Overstreet 2023-05-01 19:37 ` Kent Overstreet 2023-05-01 21:18 ` Roman Gushchin 2023-05-01 21:18 ` Roman Gushchin 2023-05-03 7:25 ` Michal Hocko 2023-05-03 7:25 ` Michal Hocko 2023-05-03 7:34 ` Kent Overstreet 2023-05-03 7:34 ` Kent Overstreet 2023-05-03 7:51 ` Michal Hocko 2023-05-03 7:51 ` Michal Hocko 2023-05-03 8:05 ` Kent Overstreet 2023-05-03 8:05 ` Kent Overstreet 2023-05-03 13:21 ` Steven Rostedt 2023-05-03 13:21 ` Steven Rostedt 2023-05-03 16:35 ` Tejun Heo 2023-05-03 16:35 ` Tejun Heo 2023-05-03 17:42 ` Suren Baghdasaryan 2023-05-03 17:42 ` Suren Baghdasaryan 2023-05-03 18:06 ` Tejun Heo 2023-05-03 18:06 ` Tejun Heo 2023-05-03 17:44 ` Kent Overstreet 2023-05-03 17:44 ` Kent Overstreet 2023-05-03 17:51 ` Kent Overstreet 2023-05-03 17:51 ` Kent Overstreet 2023-05-03 18:24 ` Tejun Heo 2023-05-03 18:24 ` Tejun Heo 2023-05-03 18:07 ` Johannes Weiner 2023-05-03 18:07 ` Johannes Weiner 2023-05-03 18:19 ` Tejun Heo [this message] 2023-05-03 18:19 ` Tejun Heo 2023-05-03 18:40 ` Tejun Heo 2023-05-03 18:40 ` Tejun Heo 2023-05-03 18:56 ` Kent Overstreet 2023-05-03 18:56 ` Kent Overstreet 2023-05-03 18:58 ` Tejun Heo 2023-05-03 18:58 ` Tejun Heo 2023-05-03 19:09 ` Tejun Heo 2023-05-03 19:09 ` Tejun Heo 2023-05-03 19:41 ` Suren Baghdasaryan 2023-05-03 19:41 ` Suren Baghdasaryan 2023-05-03 19:48 ` Tejun Heo 2023-05-03 19:48 ` Tejun Heo 2023-05-03 20:00 ` Tejun Heo 2023-05-03 20:00 ` Tejun Heo 2023-05-03 20:14 ` Suren Baghdasaryan 2023-05-03 20:14 ` Suren Baghdasaryan 2023-05-04 2:25 ` Tejun Heo 2023-05-04 2:25 ` Tejun Heo 2023-05-04 3:33 ` Kent Overstreet 2023-05-04 3:33 ` Kent Overstreet 2023-05-04 3:33 ` Suren Baghdasaryan 2023-05-04 3:33 ` Suren Baghdasaryan 2023-05-04 8:00 ` Petr Tesařík 2023-05-04 8:00 ` Petr Tesařík 2023-05-03 20:08 ` Suren Baghdasaryan 2023-05-03 20:08 ` Suren Baghdasaryan 2023-05-03 20:11 ` Johannes Weiner 2023-05-03 20:11 ` Johannes Weiner 2023-05-04 2:16 ` Tejun Heo 2023-05-04 2:16 ` Tejun Heo 2023-05-03 20:04 ` Andrey Ryabinin 2023-05-03 20:04 ` Andrey Ryabinin 2023-05-03 9:50 ` Petr Tesařík 2023-05-03 9:50 ` Petr Tesařík 2023-05-03 9:54 ` Kent Overstreet 2023-05-03 9:54 ` Kent Overstreet 2023-05-03 10:24 ` Petr Tesařík 2023-05-03 10:24 ` Petr Tesařík 2023-05-03 9:57 ` Kent Overstreet 2023-05-03 9:57 ` Kent Overstreet 2023-05-03 10:26 ` Petr Tesařík 2023-05-03 10:26 ` Petr Tesařík 2023-05-03 15:30 ` Kent Overstreet 2023-05-03 15:30 ` Kent Overstreet 2023-05-03 12:33 ` James Bottomley 2023-05-03 12:33 ` James Bottomley 2023-05-03 14:31 ` Suren Baghdasaryan 2023-05-03 14:31 ` Suren Baghdasaryan 2023-05-03 15:28 ` Kent Overstreet 2023-05-03 15:28 ` Kent Overstreet 2023-05-03 15:37 ` Lorenzo Stoakes 2023-05-03 15:37 ` Lorenzo Stoakes 2023-05-03 16:03 ` Kent Overstreet 2023-05-03 16:03 ` Kent Overstreet 2023-05-03 15:49 ` James Bottomley 2023-05-03 15:49 ` James Bottomley 2023-05-03 15:09 ` Suren Baghdasaryan 2023-05-03 15:09 ` Suren Baghdasaryan 2023-05-03 16:28 ` Steven Rostedt 2023-05-03 16:28 ` Steven Rostedt 2023-05-03 17:40 ` Suren Baghdasaryan 2023-05-03 17:40 ` Suren Baghdasaryan 2023-05-03 18:03 ` Steven Rostedt 2023-05-03 18:03 ` Steven Rostedt 2023-05-03 18:07 ` Suren Baghdasaryan 2023-05-03 18:07 ` Suren Baghdasaryan 2023-05-03 18:12 ` Kent Overstreet 2023-05-03 18:12 ` Kent Overstreet 2023-05-04 9:07 ` Michal Hocko 2023-05-04 9:07 ` Michal Hocko 2023-05-04 15:08 ` Suren Baghdasaryan 2023-05-04 15:08 ` Suren Baghdasaryan 2023-05-07 10:27 ` Michal Hocko 2023-05-07 10:27 ` Michal Hocko 2023-05-07 17:01 ` Kent Overstreet 2023-05-07 17:01 ` Kent Overstreet 2023-05-07 17:20 ` Kent Overstreet 2023-05-07 17:20 ` Kent Overstreet 2023-05-07 20:55 ` Steven Rostedt 2023-05-07 20:55 ` Steven Rostedt 2023-05-07 21:53 ` Kent Overstreet 2023-05-07 21:53 ` Kent Overstreet 2023-05-07 22:09 ` Steven Rostedt 2023-05-07 22:09 ` Steven Rostedt 2023-05-07 22:17 ` Kent Overstreet 2023-05-07 22:17 ` Kent Overstreet 2023-05-08 15:52 ` Petr Tesařík 2023-05-08 15:52 ` Petr Tesařík 2023-05-08 15:57 ` Kent Overstreet 2023-05-08 15:57 ` Kent Overstreet 2023-05-08 16:09 ` Petr Tesařík 2023-05-08 16:09 ` Petr Tesařík 2023-05-08 16:28 ` Kent Overstreet 2023-05-08 16:28 ` Kent Overstreet 2023-05-08 18:59 ` Petr Tesařík 2023-05-08 18:59 ` Petr Tesařík 2023-05-08 20:48 ` Kent Overstreet 2023-05-08 20:48 ` Kent Overstreet
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