Date: Sun, 30 Dec 2001 07:00:03 -0800 (PST) From: Sheldon Hearn <sheldonh@starjuice.net> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/31692: ntfs and sendfile problem (corrupted data) Message-ID: <200112301500.fBUF03m38142@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR bin/31692; it has been noted by GNATS. From: Sheldon Hearn <sheldonh@starjuice.net> To: freebsd-gnats-submit@FreeBSD.org Cc: Subject: Re: bin/31692: ntfs and sendfile problem (corrupted data) Date: Sun, 30 Dec 2001 16:56:22 +0200 Followup confirming that the problem is sendfile(2)-specific. Ciao, Sheldon. ----- Original Message ----- Date: Sun, 30 Dec 2001 15:47:45 +0100 (CET) From: Michal Mertl <mime@traveller.cz> To: Sheldon Hearn <sheldonh@starjuice.net> cc: current@freebsd.org Subject: Re: ntfs and sendfile problem (corrupted data) > On Sun, 30 Dec 2001, Sheldon Hearn wrote: > > > > > > > On Sun, 30 Dec 2001 01:53:08 +0100, Michal Mertl wrote: > > > > > I have ntfs partition mounted ro on current. I can read from it without > > > problems. But I noticed I get corrupted data (the corrupted file has > > > right size but contains mostly zeros) when using ftpd to read them. > > > > > > I'm pretty sure the problem is thus in sendfile(2) and/or ntfs fs support. > > > > See also PR bin/31692, which reports simmilar problems using ftpd and > > smbfs. See my request for feedback, which ought to help verify that > > it's sendfile(2) causing the problem. > > > > I did use the "goto oldway;" and the problem went away. I tried to look at > /sys/kern/uipc_syscalls.c sendfile implementation but it is too complex > for me :-(. I tried ktrace on ftpd but only saw the call to sendfile(2). > If you give me some guidance I can try to look into problem deeper. I > don't have any experience in kernel debugging but would like to learn it. > > > > > Ciao, > > Sheldon. > > > > -- > Michal Mertl > mime@traveller.cz > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200112301500.fBUF03m38142>