Re: infinite loop? with mmap, nfs, pwrite, O_DIRECT

[Kenny Simpson]

With gentle beating by a clue-stick from Andrew.. I can run the same test on ext3...

ext3 is happy...

open("/data/foo", O_RDWR|O_CREAT|O_TRUNC|O_DIRECT|O_LARGEFILE, 0666) = 3
pwrite(3, "\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, 4299161600) = 4096
mmap2(NULL, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0x100200) = 0xb7c7f000
pwrite(3, "\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, 4301258752) = 4096
exit_group(0)                           = ?


but NFS is still unhappy....

open("/mnt/bar", O_RDWR|O_CREAT|O_TRUNC|O_DIRECT|O_LARGEFILE, 0666) = 3
pwrite(3, "\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, 4299161600) = 4096
mmap2(NULL, 2097152, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0x100200) = 0xb7bc2000
pwrite(3, "\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, 4301258752  <never
returns>


-Kenny



	
		
__________________________________ 
Yahoo! Mail - PC Magazine Editors' Choice 2005 
http://mail.yahoo.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/