I see misbehaviour of new bsd grep in freebsd on tmpfs when grepping dirs. For example (on tmpfs /tmp): mkdir /tmp/qwe grep something /tmp/qwe (grep hangs) When doing the same thing on ordinary filesystem (tried zfs and ufs), all works correct (grep exits immediately). I think this is easilly reproducible, but if you want me to submit additional info on fill a PR, please tell. I'm not sure though, what is the root of error: tmpfs or grep. But grep at least should catch a error. kdumps follows: on TMPFS: 11651 grep CALL stat(0x5072e0,0x7fffffffe3e0) 11651 grep NAMI "/tmp/qwe" 11651 grep STRU struct stat {dev=67174145, ino=12, mode=drwxr-xr-x , nlink=2, uid=1001, gid=0, rdev=4294967295, atime=1281378090, stime=1281378090, ctime=1281378090, birthtime=1281378090, size=0, blksize=4096, blocks=0, flags=0x0 } 11651 grep RET stat 0 11651 grep CALL fstat(0x3,0x7fffffffe2b0) 11651 grep STRU struct stat {dev=67174145, ino=12, mode=drwxr-xr-x , nlink=2, uid=1001, gid=0, rdev=4294967295, atime=1281378090, stime=1281378090, ctime=1281378090, birthtime=1281378090, size=0, blksize=4096, blocks=0, flags=0x0 } 11651 grep RET fstat 0 11651 grep CALL read(0x3,0x800c97000,0x1000) 11651 grep RET read -1 errno 21 Is a directory 11651 grep CALL read(0x3,0x800c97000,0x1000) 11651 grep RET read -1 errno 21 Is a directory 11651 grep CALL read(0x3,0x800c97000,0x1000) 11651 grep RET read -1 errno 21 Is a directory ... (infinitely repeating this) on ZFS: 11644 grep CALL stat(0x5072e0,0x7fffffffe3d0) 11644 grep NAMI "/var/tmp/qqq" 11644 grep STRU struct stat {dev=1533790729, ino=28792, mode=drwxr-xr-x , nlink=2, uid=1001, gid=0, rdev=0, atime=1281379360.263012178, stime=1281379360.263012178, ctime=1281379360.263012178, birthtime=1281379360.263012178, size=2, blksize=131072, blocks=1, flags=0x0 } 11644 grep RET stat 0 11644 grep CALL fstat(0x3,0x7fffffffe2a0) 11644 grep STRU struct stat {dev=1533790729, ino=28792, mode=drwxr-xr-x , nlink=2, uid=1001, gid=0, rdev=0, atime=1281379360.263012178, stime=1281379360.263012178, ctime=1281379360.263012178, birthtime=1281379360.263012178, size=2, blksize=131072, blocks=1, flags=0x0 } 11644 grep RET fstat 0 11644 grep CALL read(0x3,0x800c96000,0x20000) 11644 grep GIO fd 3 read 2 bytes 0x0000 0300 |..| 11644 grep RET read 2 11644 grep CALL read(0x3,0x800c96000,0x20000) 11644 grep GIO fd 3 read 0 bytes "" 11644 grep RET read 0 11644 grep CALL close(0x3) 11644 grep RET close 0 on UFS: 11887 grep CALL stat(0x7fffffffea19,0x7fffffffe5d0) 11887 grep NAMI "/ufs_dir" 11887 grep STRU struct stat {dev=75, ino=95002, mode=drwxr-xr-x , nlink=2, uid=0, gid=0, rdev=378445, atime=1281381614, stime=1281381575, ctime=1281381575, birthtime=-1, size=512, blksize=16384, blocks=4, flags=0x0 } 11887 grep RET stat 0 11887 grep CALL open(0x7fffffffea19,O_RDONLY,<unused>0x1b6) 11887 grep NAMI "/ufs_dir" 11887 grep RET open 3 11887 grep CALL stat(0x5072e0,0x7fffffffe3e0) 11887 grep NAMI "/ufs_dir" 11887 grep STRU struct stat {dev=75, ino=95002, mode=drwxr-xr-x , nlink=2, uid=0, gid=0, rdev=378445, atime=1281381614, stime=1281381575, ctime=1281381575, birthtime=-1, size=512, blksize=16384, blocks=4, flags=0x0 } 11887 grep RET stat 0 11887 grep CALL fstat(0x3,0x7fffffffe2b0) 11887 grep STRU struct stat {dev=75, ino=95002, mode=drwxr-xr-x , nlink=2, uid=0, gid=0, rdev=378445, atime=1281381614, stime=1281381575, ctime=1281381575, birthtime=-1, size=512, blksize=16384, blocks=4, flags=0x0 } 11887 grep RET fstat 0 11887 grep CALL read(0x3,0x800c9a000,0x4000) 11887 grep GIO fd 3 read 512 bytes 0x0000 1a73 0100 0c00 0401 2e00 0000 0200 0000 f401 0402 2e2e 0000 0000 0000 0000 |.s............................| 0x001e 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x003c 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x005a 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x0078 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x0096 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x00b4 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x00d2 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x00f0 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x010e 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x012c 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x014a 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x0168 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x0186 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x01a4 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x01c2 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x01e0 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 |..............................| 0x01fe 0000 |..| 11887 grep RET read 512/0x200 11887 grep CALL read(0x3,0x800c9a000,0x4000) 11887 grep GIO fd 3 read 0 bytes "" 11887 grep RET read 0 11887 grep CALL close(0x3) 11887 grep RET close 0Received on Mon Aug 09 2010 - 20:35:21 UTC
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