Hi
The following kmemleak issue was observed in the latest
linux-block/for-next, It seems a regression issue. Please help check
it and let me know if you need any info/test for it, thanks.
unreferenced object 0xffff888160f75c00 (size 512):
comm "check", pid 29719, jiffies 4302480465
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 08 5c f7 60 81 88 ff ff .........\.`....
08 5c f7 60 81 88 ff ff 18 5c f7 60 81 88 ff ff .\.`.....\.`....
backtrace (crc dc08e6b1):
__kmalloc_cache_node_noprof+0x3b1/0x4d0
blk_throtl_init+0xa2/0x6a0
tg_set_limit+0x5ac/0x720
cgroup_file_write+0x1ab/0x670
kernfs_fop_write_iter+0x3a3/0x5a0
vfs_write+0x525/0xfd0
ksys_write+0xf9/0x1d0
do_syscall_64+0x94/0x8d0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
unreferenced object 0xffff888111280c00 (size 512):
comm "check", pid 30240, jiffies 4302503636
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 08 0c 28 11 81 88 ff ff ..........(.....
08 0c 28 11 81 88 ff ff 18 0c 28 11 81 88 ff ff ..(.......(.....
backtrace (crc 2d0490fe):
__kmalloc_cache_node_noprof+0x3b1/0x4d0
blk_throtl_init+0xa2/0x6a0
tg_set_limit+0x5ac/0x720
cgroup_file_write+0x1ab/0x670
kernfs_fop_write_iter+0x3a3/0x5a0
vfs_write+0x525/0xfd0
ksys_write+0xf9/0x1d0
do_syscall_64+0x94/0x8d0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
unreferenced object 0xffff888187ac6400 (size 512):
comm "check", pid 30484, jiffies 4302512625
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 08 64 ac 87 81 88 ff ff .........d......
08 64 ac 87 81 88 ff ff 18 64 ac 87 81 88 ff ff .d.......d......
backtrace (crc 4a3a862a):
__kmalloc_cache_node_noprof+0x3b1/0x4d0
blk_throtl_init+0xa2/0x6a0
tg_set_limit+0x5ac/0x720
cgroup_file_write+0x1ab/0x670
kernfs_fop_write_iter+0x3a3/0x5a0
vfs_write+0x525/0xfd0
ksys_write+0xf9/0x1d0
do_syscall_64+0x94/0x8d0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
unreferenced object 0xffff88822cbf3800 (size 512):
comm "check", pid 30715, jiffies 4302520405
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 08 38 bf 2c 82 88 ff ff .........8.,....
08 38 bf 2c 82 88 ff ff 18 38 bf 2c 82 88 ff ff .8.,.....8.,....
backtrace (crc 7eb87e87):
__kmalloc_cache_node_noprof+0x3b1/0x4d0
blk_throtl_init+0xa2/0x6a0
tg_set_limit+0x5ac/0x720
cgroup_file_write+0x1ab/0x670
kernfs_fop_write_iter+0x3a3/0x5a0
vfs_write+0x525/0xfd0
ksys_write+0xf9/0x1d0
do_syscall_64+0x94/0x8d0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
--
Best Regards,
Yi Zhang
