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To: cygwin@cygwin.com References: <33d4b0df-7a6a-40cf-85a2-9a4300198672@towo.net> From: Thomas Wolff Autocrypt: addr=towo@towo.net; keydata= xsDNBGNaf3QBDACVevqudcTSevLThXKQPU1QpaDxtGuYjtwmr7i9wXxVGih4Y4oxOJN4PYlu KBX9IVAI4651dA+xYtXuyIkWOPZWyyzkGKavQOn3Q7dk09oj7bh2IwOndpxXXde337D408EQ bQEGbMHr9lOWhSAideowzgCeFIvGTf2AovbPh97HpexJn1/HCRiRAhTNlrkS1DByUgCAeEMK fEr6aGM/Ou29MT+eTnQwOIZTnl9Z9LxM2FtqqMH3MycC7I2OoW3XXhuL8BPQdyJUjWa0/J11 Oo5jFkRXtWenIns6jGn18oW72jnDmo9jXwwS+iZWAV6Y51nhD7jSC+3xs9ORmPCdtHUSpTr1 zh67UueUJ3DUUNVuA25Hn/9EJMJ2L60BGUEr88NEB6pcZhmcwdkurAQeYT6t+frzBz2ctsoN BoxP/Xc02yd+z7hXWRRMrJWh9WHlQHA3Z4FfmyNhyPhs3MgKTJ1E9QfzGquigAmF3/k/Dc1m 7cSOKhGYhpEJdSpdXccJFKkAEQEAAc0cVGhvbWFzIFdvbGZmIDx0b3dvQHRvd28ubmV0PsLB BwQTAQgAMRYhBHUiRKsHn5d8BpWdP8bz0e72Bp0CBQJjWn93AhsDBAsJCAcFFQgJCgsFFgID AQAACgkQxvPR7vYGnQKSMAv8Di+8MXB2mcfsemRdShfLLKcLOv+d0CXAtPVaY3XKxbKpRvC9 +AAT5wIHYjQft77/b2y87vGIh+nQ5hKLtNtQPSDtqG/Igkb5jAXpLi28fSUzgM96DvARmwve 5wSnAU3prxH+Y63YpOpslEcGMRoEtYCDy1ANMYPcEZT/YvDd4CplyyEai4VYrw3/LsESDYlY GK6uMQzZ1jl2cNOUFu6BwLUeZIcwaqGto8n4R4nbf4jxUEpa21bWBPqE+Jf49uipjPr/iJ72 5HbdWuuCfyTTJEJjfNEBigWP2RXM9iNDcO61V3aEjh76tThfBK2MMlLWfZkQaQziu24x8R4B I0efJYWBX2Sv2qnsH/EWj7FUIZjRqGG7LnWHLShfG6yjSOTOWYi8BbsvoftpaLWgZX28aGX4 uzuSZ5L0caXh/pr/gSgqoH/YbuFIgqtQH4seOBgTybd22Vpe78rnc+8450pN8qwchHAZaJka UxS0SpYxXzXmHUKILA4C43s0U/z2Mez9zsDNBGNaf3cBDADeJ7paMrb6f1+k8wM7tyk0/Ded KX/pOejt/D20Ceerw2iL/4tUmBL+A3ic2yjiSFUSsEfHwgCVwKrn4MwZtkesdiphm2lk6xWc k1ENCQy44QwQT6UZ/mHWYWcj5LS6ua183x1zdn9iF3lv150nm/ssw56D7USz/ap1Vh0lf5te D+CIheGLocVDqxWiu7rHP8jKRWFgq/+OU6HKX8p2Yv1oYsykh9qF2bFzawLDS+S1VbfRicfD G0RtceL/BAf7b6UE5u9TGdfrFEa2TKZeS/FS/ViKUfwsXQIki1sWt2FQENbuDY28vxyR46ZZ 0gixDCFUoBw5pkmOGVQa+1RQYrRqlN4X0CAgp7mFVeEHl5NTgiL1bemkQVmHOUDG+CzNg+Lk UGoedAtT672l3JjrnSs4j8zNshpgV2OfAhAC+V9XvqCjMnxzVfXkVlbuWpPfUWQeFclLGg8P agpQUE0Ux+VV4DoeQCxYEnRCf/n7n+IRfILj5+2l6Zw4M7zSu6ii0tUAEQEAAcLA9gQYAQgA IBYhBHUiRKsHn5d8BpWdP8bz0e72Bp0CBQJjWn97AhsMAAoJEMbz0e72Bp0CQr4L/REdT0SF mbapnZIe92THCdtAUgwEv8VdNiNFBJelz8P/fuXuNPtisYvQQD4e64zpWe2UC4Cxo9DUk/pW 6Qci1xaXRKEiSPjHdSGGVB1PFIcqiS75GCf/ga/Dnfsy0Y4Uh6OGTQnkvZLBCe3vvcVLDQ7F PuV79zA9/eOeOW6aGoO6bq/wH+z96f9LyTITkQDy07fm6JYTGuzAoJE2AEboU1mgbtlx+tAa QFkpAQkp2g1Vhc3A7k4vntlHOrjMC+uVFh7QTGFfIlLRF6izUjSe6EZ06LErzlIiE05RP3yF FSRWidW0wze26peYlxYVgH1+T9wMTW2oiTBybfAMHBAxUP7Gr1WUo/oJEr0srWhatz8AwydP y7NwFbdpYn0NcFBaIlLW/JL11Eovwlivow+oGpzGFuuzSuflp2q9s2JWtn4EhW0kEs93D0LP iuJWvRaCZ6aD3uF3FMW8wyVWZYsLrzune2jH8w/uKMprDEOGOm+BcyhEFedTyY1ygbZKl+0G kQ== In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:fr5tOFIKlYIiI2tSpYG5T/qXv5fOxfB5gKozZuLH7f80Ec0XnXj Nzxneg6cK1VtdjaR0cTaSugmaojlHz7RHjOKbxXQLgW5Qgwi1ztxDGcffe5gw9JhcSIYfyu 8qJnXcMo9ZhqGQSyBNrGtUS2xrXpO1HM9IW7F9DcYHvHlfOOKvioXpJ3xtIm9lbppCM4BGC GnQUjwAoJYwcnwKbasN6Q== UI-OutboundReport: notjunk:1;M01:P0:4iTWrX1QfPw=;bYNmHJuNfzLJ2uuL8q68mQowVQw QXyaLuVW/O2Odli06GVld2BOdDsZxLv95wfEv8VUUdCkSorI0idzyshPFJIgW94n1sGHdfdIZ WHvmM4dOQSsBU6btodW94Rw7EJK2tXC/2rHDnL+BKHGOQdpTvo3RhwyEes2mTtGByyoc1T5Rb OL6SU5RCc7pCQiVvch2DM2qRxo9HEgTdR7xbfpuphaYrbhRsVTZm6o+QlzLOwuMt7+lJHrVwL mdvK8qn6FTHudKDywbR64qgwal/E9Jc0ADcRacFy5+EHBX9RRnD8LAwAmucRUHBRAbFj6192U QTIEnO/5IHvGHbU0yIPFZhWAkm6xRRrPAjfMfX5Q4XWh4XvvE9ziAe7bQjdFDnKwSNloV76XL CllSH9ug2Kyu6npXduCx2dc9/5OBU55N8tY8+hf+15dwLbKoT1neG1fPc3ffnxPafYBCr3TO1 IGONYXbsnSP5E6xshOyroJz+A3NvlMnXlj9wQ42UEpG48CclGALB5JRfuX4D+qze6iSyEMgQR M9iRhDjOF5gtftngco579BHgLoDNurBArRH8FZNaiHamW3oIEQa/S08P/0QTJPQnVrl59o/Jo JyOPxjPPmSavpApYRfFxXrEVDtYMSB5K1M0EZvGRxGRdLCKpecW9M9hlcAXUMx0bpD25lDfNn u/Jgi5mJliyn8lGqFTAUdlsL3U69TciEzIIrNM0KS1kYx7sNY8otlX6SAlrn6HCP0kSVCiETu x8uUhgtBl61ygETnapAZHKk4bLZnE9b2p6ITUyS4fJuT79uCd0XO3UNA+3OKQKW+iTt4VEzzw AHNv4yYt0LV/eVaRvgoV2TasYF2PrZyr7dwPGCTMG9U/Ll9GOYJqVu4QEObWh46xEsCANFxxa ITOkvT5VZmm3jqQ== X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00,KAM_DMARC_STATUS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Am 05/12/2023 um 14:53 schrieb Corinna Vinschen via Cygwin: > On Dec 5 07:36, Thomas Wolff via Cygwin wrote: >> >> Am 01.12.2023 um 12:02 schrieb Corinna Vinschen via Cygwin: >>> On Dec 1 11:22, Cedric Blancher via Cygwin wrote: >>>> Not all filesystems have a 128k block/stripe size, and certainly most >>>> filesystems have smaller minimum hole sizes than 128k (e.g. 512bytes >>>> is common, ref pathconf _PC_MIN_HOLE_SIZE). >>> There's no _PC_MIN_HOLE_SIZE in Linux or POSIX. In Windows, a sparse >>> file uses chunks of 64K. You can see this even with a file of just >>> a single block. Try this: >>> >>> $ touch x >>> $ chattr +S x >>> >>> $ echo 1234567890123456789012345678901234567890123456789012345678901234567890123456789 >> x >>> $ ls -ls x >>> 1 -rw-r--r-- 1 corinna vinschen 80 Dec 1 11:56 x >>> >>> [repeat echo and ls -ls until...] >>> >>> $ echo 1234567890123456789012345678901234567890123456789012345678901234567890123456789 >> x >>> $ ls -ls x >>> 1 -rw-r--r-- 1 corinna vinschen 720 Dec 1 11:56 x >>> $ echo 1234567890123456789012345678901234567890123456789012345678901234567890123456789 >> x >>> $ ls -ls x >>> 64 -rw-r--r-- 1 corinna vinschen 800 Dec 1 11:56 x2 >>> ^^ >>> This >> For me, it goes up from 1 to 4, then in steps of 4KB. > Is that a local NTFS, did you actually call > > chattr +S x > > after touching the file, and did you check with > > lsattr x > > that x is actually sparse? Ups, sorry, I was just throwing my 2p into something. Yes, on a local NTFS; setting chattr +s does not change it but lsattr says: ---a-------- .ls-s So why does chattr not seem to work? Thomas > Corinna >