Hi Hin-Tak, Now I understand clearly the reason of your issue. This is a side effect of not clean patching of your kernel (3.5.3). I worked with 3.4.6 kernel during implementation and I didn't take into account some changing of hfsplus fs driver in next kernel versions during patch set preparation. The 3.5.3 kernel has changing in super.c file that can't be merged automatically with my patch set. So, if you applied patch set by means of git then super.c file was left unchanged. But patch for super.c contains very important changing which to build attributes tree during file system mount and to destroy ones during umount. Thereby, you have warnings about failed searching in system log because of absence constructed attributes tree in memory. Currently, I am investigating issue with getting list of attributes by means of getfattr. I am going to prepare new patch set based under last actual kernel version after issue resolving. With the best regards, Vyacheslav Dubeyko. On Sep 15, 2012, at 8:49 PM, Hin-Tak Leung wrote: > --- On Sat, 15/9/12, Vyacheslav Dubeyko <slava@xxxxxxxxxxx> wrote: > >> Hi Hin-Tak, >> >> On Sep 15, 2012, at 4:11 AM, Hin-Tak Leung wrote: >> >>> Vyacheslav Dubeyko wrote: >>>> Hi, >>>> >>>> This patch adds support of manipulation by >> attributes file. >>>> >>>> With the best regards, >>>> Vyacheslav Dubeyko. >>>> -- >>>> From: Vyacheslav Dubeyko <slava@xxxxxxxxxxx> >>>> Subject: [PATCH 4/4] hfsplus: add support of >> manipulation by attributes file >>>> >>>> This patch adds support of manipulation by >> attributes file. >>>> >>>> Reported-by: Hin-Tak Leung <htl10@xxxxxxxxxxxxxxxxxxxxx> >>>> Signed-off-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx> >>> >>> NACK. It does not work (i.e. cannot read attributes of >> files which have them), and also generates a lot of >> warnings, "hfs: xattr searching failed". >>> >>> The files I looked at are the font suitecase files in >> the /System/Library/Fonts directory. >>> >> >> By the way, do you really confident that any file in your >> /System/Library/Fonts folder have any extended attribute? >> >> On my Mac none file in /System/Library/Fonts folder has any >> extended attribute. Could you check presence on extended >> attributes under Mac OS X by means of `xattr -l` command? >> >> With the best regards, >> Vyacheslav Dubeyko. > > Sorry, that was a bit brief - I just have access to a Mac OS X 10.7 box from time to time. > > - There are 4 font suitecase files, which shows up to have file size zero under linux, but not on Mac OS X. I formatted the thumb drive under Mac Os X and copied with Finder, but of course it might be something I don't understand in the process. > > - get a lot of "hfs: xattr searching failed" (about 20-ish per command) when I run getfattr on linux. > > - It is a bit confusing apple talking about resource forks and extended attributes as if they are they same thing. > > As an aside, one of the older experients, shows it to a few files with extended attributes "com.apple.decmpfs". I looked it up, apple use this atttribute to implement per-file compression - hiding the file content compressed in the attribute while having the data fork zero. (different and unrelated to the font issue). This happens on mac os X 10.6 onwards. > > --- On Sat, 15/9/12, Vyacheslav Dubeyko <slava@xxxxxxxxxxx> wrote: > >> Hi, >> >> On Sep 15, 2012, at 4:11 AM, Hin-Tak Leung wrote: >> >>> Vyacheslav Dubeyko wrote: >>>> Hi, >>>> >>>> This patch adds support of manipulation by >> attributes file. >>>> >>>> With the best regards, >>>> Vyacheslav Dubeyko. >>>> -- >>>> From: Vyacheslav Dubeyko <slava@xxxxxxxxxxx> >>>> Subject: [PATCH 4/4] hfsplus: add support of >> manipulation by attributes file >>>> >>>> This patch adds support of manipulation by >> attributes file. >>>> >>>> Reported-by: Hin-Tak Leung <htl10@xxxxxxxxxxxxxxxxxxxxx> >>>> Signed-off-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx> >>> >>> NACK. It does not work (i.e. cannot read attributes of >> files which have them), and also generates a lot of >> warnings, "hfs: xattr searching failed". >>> >>> The files I looked at are the font suitecase files in >> the /System/Library/Fonts directory. >> >> >> Could you share kernel version that you are using? >> >> What utility do you use for getting of extended attributes >> list? I need more details for issue reproduction. >> >> Could you share some more detailed output of system log >> related to the issue? > > I patched over 3.5.3 with just the 4 patches. > > I also have some messy scripts based on work from the iphone hackery people to look at details at the low-level. > -- > To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
