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| Reply-To: | Brian DOT Inglis AT SystematicSw DOT ab DOT ca |
| Subject: | Re: ls \\\\\?\\DRIVE\\ Aborted (core dumped) |
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| From: | Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca> |
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| Message-ID: | <647f1115-db8e-e37d-4b5a-33180b5afde5@SystematicSw.ab.ca> |
| Date: | Mon, 23 Sep 2019 17:39:35 -0600 |
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On 2019-09-23 16:26, Andrey Repin wrote: >> On 2019-09-23 09:02, Ken Brown wrote: >>> On 9/23/2019 10:42 AM, Mark Zhitomirski wrote: >>>> While trying different path names I've hit the following crash: >>>> $ ls \\\\\?\\DRIVE\\ >>>> assertion "p >= path" failed: file >>>> "/home/corinna/src/cygwin/cygwin-3.0.7/cygwin-3.0.7-1.x86_64/src/newlib-cygwin/winsup/cygwin/path.cc", >>>> line 2916, function: int symlink_info::check(char*, const >>>> suffix_info*, fs_info&, path_conv_handle&) >>>> Aborted (core dumped) > $ ls -ld \\\\\?\\C:\\ > drwxr-xr-x 1 anrdaemon None 0 сен 13 23:19 '\\?\C:\' > WJFFM >>> Thanks for the report. I can confirm the crash. I'll look into it. >> Although: >> $ ll $SYSTEMDRIVE\\ >> lists normally, the owner and group is the current user, whereas the correct >> owners and groups are shown by: >> $ ll /proc/cygdrive/c/ > That did not work for me, both show current user:group. > For reference, > fstab: > none / cygdrive noacl,binary,nouser,posix=0 0 0 > $ mount > C: on /c type ntfs (binary,noacl,posix=0,noumount,auto) >> and Cygwin really does not like the entries in: >> $ ll \\\\\?\\*\\ >> use of any name instead of *, or none causes a crash: >> $ ll \\\\\?\\Boot\\ >> $ ll \\\\\?\\ > I wonder, what have you tried to reach here? The Win 32 unlimited absolute path length file name space \\?\, just as \\.\ is the Win 32 device name space: https://docs.microsoft.com/en-ca/windows/win32/fileio/naming-a-file Compare: > fsutil fsinfo ntfsinfo \\.\C: NTFS Volume Serial Number : 0x80ffb5d906b8d438 NTFS Version : 3.1 LFS Version : 2.0 Number Sectors : 0x00000000744bc466 Total Clusters : 0x000000000e89788c Free Clusters : 0x0000000009861b37 Total Reserved : 0x000000000000b4b0 Bytes Per Sector : 512 Bytes Per Physical Sector : 4096 Bytes Per Cluster : 4096 Bytes Per FileRecord Segment : 1024 Clusters Per FileRecord Segment : 0 Mft Valid Data Length : 0x00000000e4f00000 Mft Start Lcn : 0x00000000000ad74c Mft2 Start Lcn : 0x0000000000000002 Mft Zone Start : 0x000000000522ce40 Mft Zone End : 0x0000000005239660 Max Device Trim Extent Count : 0 Max Device Trim Byte Count : 0x0 Max Volume Trim Extent Count : 62 Max Volume Trim Byte Count : 0x40000000 > fsutil fsinfo ntfsinfo C: NTFS Volume Serial Number : 0x80ffb5d906b8d438 NTFS Version : 3.1 LFS Version : 2.0 Number Sectors : 0x00000000744bc466 Total Clusters : 0x000000000e89788c Free Clusters : 0x0000000009861b37 Total Reserved : 0x000000000000b4b0 Bytes Per Sector : 512 Bytes Per Physical Sector : 4096 Bytes Per Cluster : 4096 Bytes Per FileRecord Segment : 1024 Clusters Per FileRecord Segment : 0 Mft Valid Data Length : 0x00000000e4f00000 Mft Start Lcn : 0x00000000000ad74c Mft2 Start Lcn : 0x0000000000000002 Mft Zone Start : 0x000000000522ce40 Mft Zone End : 0x0000000005239660 Max Device Trim Extent Count : 0 Max Device Trim Byte Count : 0x0 Max Volume Trim Extent Count : 62 Max Volume Trim Byte Count : 0x40000000 Resource Manager Identifier : 99B60DE5-842F-11E1-98AF-D71846560B56 ^ Object Identifier -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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