Mail Archives: cygwin/2014/08/26/05:15:30
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| To: | cygwin AT cygwin DOT com
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| From: | Achim Gratz <Stromeko AT NexGo DOT DE>
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| Subject: | Re: Why does df fail to stat CIFS shares?
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| Date: | Tue, 26 Aug 2014 09:14:52 +0000 (UTC)
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| Lines: | 131
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| Message-ID: | <loom.20140826T110928-929@post.gmane.org>
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| References: | <20140627143626 DOT GA9220 AT F1S712WWS> <20140703094152 DOT GB1803 AT calimero DOT vinschen DOT de>
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Corinna Vinschen <corinna-cygwin <at> cygwin.com> writes:
> That's the real output? No error message, just the names of the
> mount points? Is that the 32 or 64 bit Cygwin?
Yes:
> df /home/gratz
df: ‘/home/gratz’
> Given the lack of access to netapp drives, if this is a bug in Cygwin
> (which seems likely in this case) I would need your cooperation to run
> debugging sessions to be able to come up with a fix. Is that ok?
Sorry, can't do that.
> For a start, could you run `strace -o df.strace df' and attach the
> df.strace file to your reply?
My home dir is on a NetApp. This one's mounted with ACL, but the same
happens for volumes that are mounted noacl.
> /usr/lib/csih/getVolInfo /home/gratz
Device Type : 7
Characteristics : 10
Volume Name : <CIFS.HOMEDIR>
Serial Number : 0
Max Filenamelength : 255
Filesystemname : <NTFS>
Flags : 4004f
FILE_CASE_SENSITIVE_SEARCH : TRUE
FILE_CASE_PRESERVED_NAMES : TRUE
FILE_UNICODE_ON_DISK : TRUE
FILE_PERSISTENT_ACLS : TRUE
FILE_FILE_COMPRESSION : FALSE
FILE_VOLUME_QUOTAS : FALSE
FILE_SUPPORTS_SPARSE_FILES : TRUE
FILE_SUPPORTS_REPARSE_POINTS: FALSE
FILE_SUPPORTS_REMOTE_STORAGE: FALSE
FILE_VOLUME_IS_COMPRESSED : FALSE
FILE_SUPPORTS_OBJECT_IDS : FALSE
FILE_SUPPORTS_ENCRYPTION : FALSE
FILE_NAMED_STREAMS : TRUE
FILE_READ_ONLY_VOLUME : FALSE
FILE_SEQUENTIAL_WRITE_ONCE : FALSE
FILE_SUPPORTS_TRANSACTIONS : FALSE
The interesting part of the trace is this:
37 2532956 [main] df 15880 get_info_from_sd: ACL 0x41C0, uid 1124017, gid
1049089
54 2533010 [main] df 15880 fhandler_base::fstat_helper: 0 = fstat
(\??\H:\GNU, 0x22AA00) st_size=0, st_mode=0x41C0,
st_ino=-891439913066804700st_atim=53FB5E84.243D9E50
st_ctim=53F5EE0B.37D76CE8 st_mtim=53F5EE0B.37D76CE8 st_birthtim=3FB9EC6D.0
39 2533049 [main] df 15880 stat_worker: 0 = (\??\H:\GNU,0x22AA00)
2857 2535906 [main] df 15880 normalize_posix_path: src /home/gratz
57 2535963 [main] df 15880 normalize_posix_path: /home/gratz =
normalize_posix_path (/home/gratz)
39 2536002 [main] df 15880 mount_info::conv_to_win32_path:
conv_to_win32_path (/home/gratz)
33 2536035 [main] df 15880 set_flags: flags: binary (0x2)
32 2536067 [main] df 15880 mount_info::conv_to_win32_path: src_path
/home/gratz, dst H:\GNU, flags 0x2, rc 0
1289 2537356 [main] df 15880 symlink_info::check: 0x0 = NtCreateFile
(\??\H:\GNU)
3159 2540515 [main] df 15880 symlink_info::check: not a symlink
1814 2542329 [main] df 15880 symlink_info::check: 0 = symlink.check(H:\GNU,
0x229330) (0x2)
59 2542388 [main] df 15880 path_conv::check: this->path(H:\GNU), has_acls(1)
49 2542437 [main] df 15880 build_fh_pc: fh 0x180331B38, dev 000000C3
28 2542465 [main] df 15880 statvfs: (/home/gratz, 0x22A5E0),
file_attributes 48
1404 2543869 [main] df 15880 fhandler_disk_file::fstatvfs: 0xC000000D =
NtQueryVolumeInformationFile(\??\H:\GNU, FileFsFullSizeInformation)
2918 2546787 [main] df 15880 fhandler_disk_file::fstatvfs: -1 =
fstatvfs(/home/gratz, 0x22A5E0)
71 2546858 [main] df 15880 statvfs: -1 = statvfs(/home/gratz,0x22A5E0),
errno 0
1201 2548059 [main] df 15880 fhandler_pty_slave::write: pty1,
write(0x22AB30, 2)
60 2548119 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex (0x190): waiting -1 ms
43 2548162 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex: acquired
43 2548205 [main] df 15880 fhandler_pty_slave::write: (671): pty
output_mutex(0x190) released
34 2548239 [main] df 15880 write: 2 = write(2, 0x22AB30, 2)
66 2548305 [main] df 15880 fhandler_pty_slave::write: pty1,
write(0x18022ADE1, 1)
37 2548342 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex (0x190): waiting -1 ms
47 2548389 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex: acquired
40 2548429 [main] df 15880 fhandler_pty_slave::write: (671): pty
output_mutex(0x190) released
34 2548463 [main] df 15880 write: 1 = write(2, 0x18022ADE1, 1)
62 2548525 [main] df 15880 fhandler_pty_slave::write: pty1,
write(0x18022ADD5, 1)
38 2548563 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex (0x190): waiting -1 ms
56 2548619 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex: acquired
39 2548658 [main] df 15880 fhandler_pty_slave::write: (671): pty
output_mutex(0x190) released
34 2548692 [main] df 15880 write: 1 = write(2, 0x18022ADD5, 1)
307 2548999 [main] df 15880 fhandler_pty_slave::write: pty1,
write(0x10041C0C0, 17)
40 2549039 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex (0x190): waiting -1 ms
41 2549080 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex: acquired
39 2549119 [main] df 15880 fhandler_pty_slave::write: (671): pty
output_mutex(0x190) released
34 2549153 [main] df 15880 write: 17 = write(2, 0x10041C0C0, 17)
577 2549730 [main] df 15880 fhandler_pty_slave::write: pty1,
write(0x1801D4907, 1)
39 2549769 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex (0x190): waiting -1 ms
42 2549811 [main] df 15880 fhandler_pty_slave::write: (656): pty
output_mutex: acquired
39 2549850 [main] df 15880 fhandler_pty_slave::write: (671): pty
output_mutex(0x190) released
34 2549884 [main] df 15880 write: 1 = write(2, 0x1801D4907, 1)
581 2550465 [main] df 15880 close: close(1)
38 2550503 [main] df 15880 fhandler_base::close: closing '' handle 0x228
34 2550537 [main] df 15880 close: 0 = close(1)
412 2550949 [main] df 15880 close: close(2)
Regards,
Achim.
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