Syzbot CI

Subject	mm/slab: reduce slab accounting memory overhead by allocating slabobj_ext metadata within unsed slab space
Author	harry.yoo@oracle.com
Date	2025-12-22 11:08:36 +0000 UTC
Version
Cc	adilger.kernel@dilger.ca akpm@linux-foundation.org andreyknvl@gmail.com cgroups@vger.kernel.org cl@gentwo.org dvyukov@google.com glider@google.com hannes@cmpxchg.org hao.li@linux.dev harry.yoo@oracle.com linux-ext4@vger.kernel.org linux-kernel@vger.kernel.org linux-mm@kvack.org mhocko@kernel.org muchun.song@linux.dev rientjes@google.com roman.gushchin@linux.dev ryabinin.a.a@gmail.com shakeel.butt@linux.dev stable@vger.kernel.org surenb@google.com tytso@mit.edu vbabka@suse.cz vincenzo.frascino@arm.com yeoreum.yun@arm.com

Subject

Author

harry.yoo@oracle.com

Date

2025-12-22 11:08:36 +0000 UTC

Version

adilger.kernel@dilger.ca akpm@linux-foundation.org andreyknvl@gmail.com cgroups@vger.kernel.org cl@gentwo.org dvyukov@google.com glider@google.com hannes@cmpxchg.org hao.li@linux.dev harry.yoo@oracle.com linux-ext4@vger.kernel.org linux-kernel@vger.kernel.org linux-mm@kvack.org mhocko@kernel.org muchun.song@linux.dev rientjes@google.com roman.gushchin@linux.dev ryabinin.a.a@gmail.com shakeel.butt@linux.dev stable@vger.kernel.org surenb@google.com tytso@mit.edu vbabka@suse.cz vincenzo.frascino@arm.com yeoreum.yun@arm.com

Name	Content [All]
[PATCH V4 1/8] mm/slab: use unsigned long for orig_size to ensure proper metadata align	[Body]
[PATCH V4 2/8] mm/slab: allow specifying free pointer offset when using constructor	[Body]
[PATCH V4 3/8] ext4: specify the free pointer offset for ext4_inode_cache	[Body]
[PATCH V4 4/8] mm/slab: abstract slabobj_ext access via new slab_obj_ext() helper	[Body]
[PATCH V4 5/8] mm/slab: use stride to access slabobj_ext	[Body]
[PATCH V4 6/8] mm/memcontrol,alloc_tag: handle slabobj_ext access under KASAN poison	[Body]
[PATCH V4 7/8] mm/slab: save memory by allocating slabobj_ext array from leftover	[Body]
[PATCH V4 8/8] mm/slab: place slabobj_ext metadata in unused space within s->size	[Body]

Name

Content [All]

Passed

Test	Base	Patched	Verdict
[KASAN] Build Base	c642ecda5b136882e518d8303863473c0d21ab2f [Config]		passed [Log]
[KASAN] Boot test: Base	c642ecda5b136882e518d8303863473c0d21ab2f [Config]		passed [Log]
[KASAN] Build Patched		c642ecda5b136882e518d8303863473c0d21ab2f [Config] [patched]	passed [Log]
[KASAN] Boot test: Patched		c642ecda5b136882e518d8303863473c0d21ab2f [Config] [patched]	passed [Log]
[KASAN] Fuzzing	c642ecda5b136882e518d8303863473c0d21ab2f [Config]	c642ecda5b136882e518d8303863473c0d21ab2f [Config] [patched]	passed [Log] [Artifacts]