On Thu, Feb 16, 2017, 14:04 Carlo Caione <ca...@endlessm.com> wrote: > On Thu, Feb 16, 2017 at 12:37 PM, Carlo Caione <ca...@endlessm.com> wrote: > > On Thu, Feb 16, 2017 at 12:32 PM, Thomas Schmitt <scdbac...@gmx.net> > wrote: > >> Hi, > >> > >> Carlo Caione wrote: > >>> > I think that the problem > >>> > here is that endless.squash has been stored in two extents in the > >>> > ISO9660 and GRUB doesn't deal fine with that (also according to this > >>> > comment > >>> > > http://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/fs/iso9660.c#n960 > >> > >> Andrei Borzenkov wrote: > >>> This comment could be stale and misleading. > >> > >> The code of read_node() in iso9660.c looks ready for multi-extent (aka > ISO > >> level 3). > >> > >> I have a very densely compressed test ISO for large file support > >> http://scdbackup.webframe.org/large.iso.bz2 > >> which bunzip2 inflates from 4.5 KiB to 4+ GiB. > > > > Yeah, I made some more tests and apparently the problem is not in the > > ISO9660 module but in the SQUASH4 module. > > To be perfectly honest I have already a patch that solves my problem > > but I'm having a hard time to understand WHY it solves the issue since > > I'm still not really familiar with squashfs (I casually found it > > during my debugging). > > Of course probably it is only masking a problem somewhere else. Still > digging. > > > > diff --git a/grub-core/fs/squash4.c b/grub-core/fs/squash4.c > > index b97b344..4fef813 100644 > > --- a/grub-core/fs/squash4.c > > +++ b/grub-core/fs/squash4.c > > @@ -895,7 +895,7 @@ grub_squash_read_data (struct grub_squash_data *data, > > break; > > } > > > > - if (fragment == 0xffffffff) > > + if (fragment == 0xffffffff || fragment == 0) > > return direct_read (data, ino, off, buf, len); > > > > err = read_chunk (data, &frag, sizeof (frag), > > Hey Vladimir, > Any idea about this? > How big is the file in question? What is the squash tools version?
> > > -- > Carlo Caione | +39.340.80.30.096 | Endless >
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