18.09.2015 12:07, Arch Stack пишет:
I want to use the part of the filesystem codes in GRUB to read different
filesystems on Windows. I have almost completed it and I will release it in
a few days.
But it crash sometimes because of the write of zero pointer.I debug it and
find why it crashed.
Please show stack trace of crash. GRUB does not run multithreaded so
something different must happen.
When I apply this patch, it won't crash because of this
reason.
On Fri, Sep 18, 2015 at 12:03 PM, Andrei Borzenkov <arvidj...@gmail.com>
wrote:
18.09.2015 03:15, Arch Stack пишет:
I found that the function *grub_disk_cache_store* didn't check for
*cache->lock* before free *cache->data*, and didn't set *cache->lock*
before memcpy something to *cache->data*. If multi thread handle with the
same cache at the same time, it will cause a fault.
Do you actually observe a problem or it is pure hypothesis? GRUB does not
run multi-threaded and probably never will.
I have created a patch
for it.
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