In the last episode (Dec 08), Kris Kennaway said: > On Mon, Dec 08, 2003 at 10:22:30PM +0100, Martin wrote: > > Here is the result of a read access on a file, which is obviously > > unreadable: > > > > acd0: FAILURE - READ BIG status=51<READY,DSC,ERROR> sensekey=MEDIUM > > ERROR error=4<ABORTED> > > vm_fault: pager read error, pid 606 (cp) > > cp: filename: Bad address > > > > I want to report it, because of the "vm_fault", it sounds "scary". > > Is this a correct behaviour or a bug in the kernel? > > That's just what happens when an error is detected by the disk > driver. This can be caused by hardware failure or incompatibility, or > a driver bug. More specifically, you get a vm_fault if the kernel is trying to page in a block of memory for a process but can't. The reason you get this instead of a regular read error is because cp uses mmap() on files smaller than 8 MB. -- Dan Nelson dnelson_at_allantgroup.comReceived on Mon Dec 08 2003 - 13:04:39 UTC
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