https://bugzilla.kernel.org/show_bug.cgi?id=60121 Summary: -next and -mm: kmemleak reports 6 leaks in ext4_mount paths Product: File System Version: 2.5 Kernel Version: v3.10-rc6-684-g9dcc58c Platform: All OS/Version: Linux Tree: -mm Status: NEW Severity: normal Priority: P1 Component: ext4 AssignedTo: fs_ext4@xxxxxxxxxxxxxxxxxxxx ReportedBy: jmesmon@xxxxxxxxx Regression: Yes Created an attachment (id=106021) --> (https://bugzilla.kernel.org/attachment.cgi?id=106021) .config In next-20130624, next-20130625 and mmotm (v3.10-rc6-684-g9dcc58c), kmemleak complains about some ext4_mount related allocations. ---- # cat /sys/kernel/debug/kmemleak unreferenced object 0xffff880002a6dd80 (size 256): comm "swapper/0", pid 1, jiffies 4294892475 (age 33.128s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 0c 0d 36 82 ff ff ff ff ..........6..... backtrace: [<ffffffff813adfc1>] kmemleak_alloc+0x21/0x50 [<ffffffff810e7b43>] __kmalloc+0x103/0x460 [<ffffffff810cdd81>] list_lru_init+0x21/0xb0 [<ffffffff810f36b5>] sget+0x305/0x670 [<ffffffff810f463a>] mount_bdev+0xba/0x1e0 [<ffffffff81175460>] ext4_mount+0x10/0x20 [<ffffffff810f4950>] mount_fs+0x10/0xc0 [<ffffffff81111c5a>] vfs_kern_mount+0x5a/0xf0 [<ffffffff811133ca>] do_mount+0x1da/0x9d0 [<ffffffff81113c3e>] SyS_mount+0x7e/0xc0 [<ffffffff8184c245>] mount_block_root+0x104/0x223 [<ffffffff8184c455>] mount_root+0xf1/0xfa [<ffffffff8184c58e>] prepare_namespace+0x130/0x168 [<ffffffff8184bff8>] kernel_init_freeable+0x185/0x192 [<ffffffff813ab7f9>] kernel_init+0x9/0x180 [<ffffffff813c963c>] ret_from_fork+0x7c/0xb0 unreferenced object 0xffff880002a6d980 (size 256): comm "swapper/0", pid 1, jiffies 4294892475 (age 33.128s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 0c 0d 36 82 ff ff ff ff ..........6..... backtrace: [<ffffffff813adfc1>] kmemleak_alloc+0x21/0x50 [<ffffffff810e7b43>] __kmalloc+0x103/0x460 [<ffffffff810cdd81>] list_lru_init+0x21/0xb0 [<ffffffff810f36c9>] sget+0x319/0x670 [<ffffffff810f463a>] mount_bdev+0xba/0x1e0 [<ffffffff81175460>] ext4_mount+0x10/0x20 [<ffffffff810f4950>] mount_fs+0x10/0xc0 [<ffffffff81111c5a>] vfs_kern_mount+0x5a/0xf0 [<ffffffff811133ca>] do_mount+0x1da/0x9d0 [<ffffffff81113c3e>] SyS_mount+0x7e/0xc0 [<ffffffff8184c245>] mount_block_root+0x104/0x223 [<ffffffff8184c455>] mount_root+0xf1/0xfa [<ffffffff8184c58e>] prepare_namespace+0x130/0x168 [<ffffffff8184bff8>] kernel_init_freeable+0x185/0x192 [<ffffffff813ab7f9>] kernel_init+0x9/0x180 [<ffffffff813c963c>] ret_from_fork+0x7c/0xb0 unreferenced object 0xffff880002a7a7a0 (size 32): comm "swapper/0", pid 1, jiffies 4294892475 (age 33.128s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff813adfc1>] kmemleak_alloc+0x21/0x50 [<ffffffff810e7b43>] __kmalloc+0x103/0x460 [<ffffffff810c091e>] register_shrinker+0x7e/0xa0 [<ffffffff810f394e>] sget+0x59e/0x670 [<ffffffff810f463a>] mount_bdev+0xba/0x1e0 [<ffffffff81175460>] ext4_mount+0x10/0x20 [<ffffffff810f4950>] mount_fs+0x10/0xc0 [<ffffffff81111c5a>] vfs_kern_mount+0x5a/0xf0 [<ffffffff811133ca>] do_mount+0x1da/0x9d0 [<ffffffff81113c3e>] SyS_mount+0x7e/0xc0 [<ffffffff8184c245>] mount_block_root+0x104/0x223 [<ffffffff8184c455>] mount_root+0xf1/0xfa [<ffffffff8184c58e>] prepare_namespace+0x130/0x168 [<ffffffff8184bff8>] kernel_init_freeable+0x185/0x192 [<ffffffff813ab7f9>] kernel_init+0x9/0x180 [<ffffffff813c963c>] ret_from_fork+0x7c/0xb0 unreferenced object 0xffff88000692b1c0 (size 256): comm "swapper/0", pid 1, jiffies 4294892648 (age 32.500s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 0c 0d 36 82 ff ff ff ff ..........6..... backtrace: [<ffffffff813adfc1>] kmemleak_alloc+0x21/0x50 [<ffffffff810e7b43>] __kmalloc+0x103/0x460 [<ffffffff810cdd81>] list_lru_init+0x21/0xb0 [<ffffffff810f36b5>] sget+0x305/0x670 [<ffffffff810f463a>] mount_bdev+0xba/0x1e0 [<ffffffff81175460>] ext4_mount+0x10/0x20 [<ffffffff810f4950>] mount_fs+0x10/0xc0 [<ffffffff81111c5a>] vfs_kern_mount+0x5a/0xf0 [<ffffffff811133ca>] do_mount+0x1da/0x9d0 [<ffffffff81113c3e>] SyS_mount+0x7e/0xc0 [<ffffffff8184c245>] mount_block_root+0x104/0x223 [<ffffffff8184c455>] mount_root+0xf1/0xfa [<ffffffff8184c58e>] prepare_namespace+0x130/0x168 [<ffffffff8184bff8>] kernel_init_freeable+0x185/0x192 [<ffffffff813ab7f9>] kernel_init+0x9/0x180 [<ffffffff813c963c>] ret_from_fork+0x7c/0xb0 unreferenced object 0xffff88000692b2c0 (size 256): comm "swapper/0", pid 1, jiffies 4294892648 (age 32.500s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 0c 0d 36 82 ff ff ff ff ..........6..... backtrace: [<ffffffff813adfc1>] kmemleak_alloc+0x21/0x50 [<ffffffff810e7b43>] __kmalloc+0x103/0x460 [<ffffffff810cdd81>] list_lru_init+0x21/0xb0 [<ffffffff810f36c9>] sget+0x319/0x670 [<ffffffff810f463a>] mount_bdev+0xba/0x1e0 [<ffffffff81175460>] ext4_mount+0x10/0x20 [<ffffffff810f4950>] mount_fs+0x10/0xc0 [<ffffffff81111c5a>] vfs_kern_mount+0x5a/0xf0 [<ffffffff811133ca>] do_mount+0x1da/0x9d0 [<ffffffff81113c3e>] SyS_mount+0x7e/0xc0 [<ffffffff8184c245>] mount_block_root+0x104/0x223 [<ffffffff8184c455>] mount_root+0xf1/0xfa [<ffffffff8184c58e>] prepare_namespace+0x130/0x168 [<ffffffff8184bff8>] kernel_init_freeable+0x185/0x192 [<ffffffff813ab7f9>] kernel_init+0x9/0x180 [<ffffffff813c963c>] ret_from_fork+0x7c/0xb0 unreferenced object 0xffff880006916780 (size 32): comm "swapper/0", pid 1, jiffies 4294892648 (age 32.500s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff813adfc1>] kmemleak_alloc+0x21/0x50 [<ffffffff810e7b43>] __kmalloc+0x103/0x460 [<ffffffff810c091e>] register_shrinker+0x7e/0xa0 [<ffffffff810f394e>] sget+0x59e/0x670 [<ffffffff810f463a>] mount_bdev+0xba/0x1e0 [<ffffffff81175460>] ext4_mount+0x10/0x20 [<ffffffff810f4950>] mount_fs+0x10/0xc0 [<ffffffff81111c5a>] vfs_kern_mount+0x5a/0xf0 [<ffffffff811133ca>] do_mount+0x1da/0x9d0 [<ffffffff81113c3e>] SyS_mount+0x7e/0xc0 [<ffffffff8184c245>] mount_block_root+0x104/0x223 [<ffffffff8184c455>] mount_root+0xf1/0xfa [<ffffffff8184c58e>] prepare_namespace+0x130/0x168 [<ffffffff8184bff8>] kernel_init_freeable+0x185/0x192 [<ffffffff813ab7f9>] kernel_init+0x9/0x180 [<ffffffff813c963c>] ret_from_fork+0x7c/0xb0 # -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at 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