Michael Tokarev <m...@tls.msk.ru> writes:
> 28.02.2013 17:55, M. Mohan Kumar wrote: >> Michael Tokarev <m...@tls.msk.ru> writes: >> >> Hi, >> >> Please try mounting with -oversion=9p2000.L >> >> With qemu-1.4.0 and 9p2000.L, I could not recreate this issue. ie not >> getting Unknown error during directory listing. > > Yes, with 9p2000.L it works fine, both reported > issues are gone. > >> I am using Guest kernel 3.8.0-rc5+. > > But do you see my original error, with the default mount version? > (I'm using 3.2 guest kernel if that matters, and it is also 32bits, > which should not matter). Yes, with default mount option, i am getting same error. > >>> When I mount a 9pfs filesystem in guest with no write permission for >>> some dirs, I'm getting strange errors in guest. >>> >>> Host (as a regular user): >>> qemu-system-x86_64 -virtfs >>> local,path=/,security_model=mapped-file,mount_tag=tag >>> >>> Guest: >>> # mount -t 9p -o trans=virtio,ro tag /mnt >>> # ls /mnt >>> ls: reading directory /mnt: Unknown error 593 >>> # ls /mnt/dev >>> ls: reading directory /mnt/dev: Unknown error 849 >>> # ls /mnt/tmp >>> [works] >>> # ls /mnt/root >>> ls: cannot open directory /mnt/root: Permission denied >>> >>> So, it reports errors while trying to _read_ (not open) >>> readable but non-writable dirs, and these errors are _random_. >>> It correctly reports errors when trying to open an unreadable >>> dir. >>> >>> This is 1.4.0. Similar problem exists with earlier versions >>> of qemu. >>> >>> Thanks! >>> >>> /mjt >>
