Messages in this thread | | | Date | Thu, 16 Dec 1999 12:18:02 +0100 | From | Benjamin Herrenschmidt <> | Subject | IDE block i/o & ordering |
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Hi !
While working on MacOnLinux (sort of VWWare-like runtime environement to run MacOS within Linux/PPC), Samuel Rydth found the following issue with 2.2.x kernels. Is this a normal behaviour, a known bug or a PPC-specific issue I should look into more details ?
---------------- Begin Forwarded Message ---------------- Btw. I found an oddity with the IDE block device interface (causes problems with DropStuffit in MacOS 9). In a sequence like
write A to sector N write B to sector N read sector N
then the read might not return the information "B" (but something else). I've always assumed that the block device drivers were supposed to enforce this consistency but I might be wrong. Everything work as it should if an extra "fsync" is inserted after each write. This might impact driver performance though.
----------------- End Forwarded Message -----------------
Ben.
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