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<body><span class="vcard"><a class="email" href="mailto:sbergman@redhat.com" title="Stephan Bergmann <sbergman@redhat.com>"> <span class="fn">Stephan Bergmann</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTOURBUG - LO on Linux crashes when accessing opend/locked File on SAMBA network share"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=127648">bug 127648</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>UNCONFIRMED
</td>
<td>RESOLVED
</td>
</tr>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>NOTOURBUG
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTOURBUG - LO on Linux crashes when accessing opend/locked File on SAMBA network share"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=127648#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED NOTOURBUG - LO on Linux crashes when accessing opend/locked File on SAMBA network share"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=127648">bug 127648</a>
from <span class="vcard"><a class="email" href="mailto:sbergman@redhat.com" title="Stephan Bergmann <sbergman@redhat.com>"> <span class="fn">Stephan Bergmann</span></a>
</span></b>
<pre>(In reply to Jan from <a href="show_bug.cgi?id=127648#c17">comment #17</a>)
<span class="quote">> Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=155456" name="attach_155456" title="strace with debug build">attachment 155456</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=155456&action=edit" title="strace with debug build">[details]</a></span>
> strace with debug build</span >
So that's a kernel bug:
[...]
<span class="quote">> 2085 20:13:46.936734 openat(AT_FDCWD, "/mnt/locktest.odt", O_RDONLY) = 22
> 2085 20:13:46.938557 fstat(22, {st_mode=S_IFREG|0600, st_size=8305, ...}) = 0</span >
[...]
<span class="quote">> 2085 20:13:46.942594 pread64(22, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096, 0) = 4294967283</span >
[...]
So /mnt/locktest.odt is reported to have a size of 8305 bytes, and when we want
to read 4096 bytes from the start, pread64 claims it read 4294967283 bytes.
Whatever filesystem is used by that mount point appears to have a bug (smells
like an EACESS = 13 is internally reported as -13 as a 32 bit value (i.e.,
4294967283 = 0xFFFFFFF3) and then erroneously interpreted as a positive 64-bit
value, and propagated out from the kernel as that).</pre>
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