Created
March 11, 2012 03:58
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DTrace Mac OS X launchd write origin
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| root@macbook:~> dtrace -n 'io:::start /!(args[0]->b_flags & B_READ) && execname == "launchd"/ { trace(execname); stack(); }' | |
| dtrace: description 'io:::start ' matched 1 probe | |
| CPU ID FUNCTION:NAME | |
| 0 19368 buf_strategy:start launchd | |
| mach_kernel`buf_strategy+0x5e | |
| mach_kernel`hfs_vnop_strategy+0x34 | |
| mach_kernel`VNOP_STRATEGY+0x2f | |
| mach_kernel`buf_bwrite+0x257 | |
| mach_kernel`hfs_vnop_bwrite+0x12a | |
| mach_kernel`VNOP_BWRITE+0x2f | |
| mach_kernel`buf_invalblkno+0x187 | |
| mach_kernel`journal_modify_block_abort+0xe25 | |
| mach_kernel`journal_flush+0x1fa | |
| mach_kernel`MacToVFSError+0xfc | |
| mach_kernel`hfs_mark_volume_inconsistent+0x212b | |
| mach_kernel`getxattr+0x29f | |
| mach_kernel`vfs_iterate+0xcc | |
| mach_kernel`sync+0x22 | |
| mach_kernel`unix_syscall64+0x269 | |
| mach_kernel`lo64_unix_scall+0x4d | |
| 0 19368 buf_strategy:start launchd | |
| mach_kernel`buf_strategy+0x5e | |
| mach_kernel`hfs_vnop_strategy+0x34 | |
| mach_kernel`VNOP_STRATEGY+0x2f | |
| mach_kernel`buf_bwrite+0x257 | |
| mach_kernel`hfs_vnop_bwrite+0x12a | |
| mach_kernel`VNOP_BWRITE+0x2f | |
| mach_kernel`buf_invalblkno+0x187 | |
| mach_kernel`journal_modify_block_abort+0xe25 | |
| mach_kernel`journal_flush+0x1fa | |
| mach_kernel`MacToVFSError+0xfc | |
| mach_kernel`hfs_mark_volume_inconsistent+0x212b | |
| mach_kernel`getxattr+0x29f | |
| mach_kernel`vfs_iterate+0xcc | |
| mach_kernel`sync+0x22 | |
| mach_kernel`unix_syscall64+0x269 | |
| mach_kernel`lo64_unix_scall+0x4d | |
| 0 19368 buf_strategy:start launchd | |
| mach_kernel`buf_strategy+0x5e | |
| mach_kernel`hfs_vnop_strategy+0x34 | |
| mach_kernel`VNOP_STRATEGY+0x2f | |
| mach_kernel`buf_bwrite+0x257 | |
| mach_kernel`hfs_vnop_bwrite+0x12a | |
| mach_kernel`VNOP_BWRITE+0x2f | |
| mach_kernel`buf_invalblkno+0x187 | |
| mach_kernel`journal_modify_block_abort+0xe25 | |
| mach_kernel`journal_flush+0x1fa | |
| mach_kernel`MacToVFSError+0xfc | |
| mach_kernel`hfs_mark_volume_inconsistent+0x212b | |
| mach_kernel`getxattr+0x29f | |
| mach_kernel`vfs_iterate+0xcc | |
| mach_kernel`sync+0x22 | |
| mach_kernel`unix_syscall64+0x269 | |
| mach_kernel`lo64_unix_scall+0x4d | |
| [...] |
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