Messages in this thread | | | Date | Tue, 8 Jan 2002 23:09:06 -0700 (MST) | From | Jason Gunthorpe <> | Subject | cramfs + initrd bug in 2.4.15 |
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[Please CC all replies]
Hi,
I just found a small bug in the way ramdisks work - it was introduced sometime between 2.4.10 and 2.4.15. I haven't yet been able to try 2.4.17, but I didn't see anything too evident in the patch/changelog.
Basically, if you use a filesystem with a blocksize that is not BLOCK_SIZE then when the filesystem super block is loaded set_blocksize will be called which will call kill_bdev which calls truncate_inode_pages on the rd mapping - that ends up destroying the ramdisk.
I found this while using cramfs as an initrd, a hackish work around in my case is to change the default block size of the ramdisk - I'm not sure what the real fix should be.
Hope this helps, Jason
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