Re: [uml-devel] hostfs oddities

2008-07-08 Thread Jeff Dike
On Sat, Jul 05, 2008 at 08:46:31PM +0200, Ingo van Lil wrote: > 1. If a file is held read-only by one process it cannot by creat()'ed by > another one: > >[EMAIL PROTECTED] ~]# mount -t hostfs none /mnt >[EMAIL PROTECTED] ~]# cd /mnt/tmp >[EMAIL PROTECTED] tmp]# touch foo >[EMAIL

Re: [uml-devel] hostfs oddities

2008-07-08 Thread Ingo van Lil
Jeff Dike wrote: >> 1. If a file is held read-only by one process it cannot by creat()'ed by >> another one: >> [...] >> >> I tracked that problem down to the set_attr() function in hostfs_user.c: >> It tries to ftruncate() the read-only file descriptor. The file should >> be re-opened writable

[uml-devel] Question about Host PCI and DMA support in UML

2008-07-08 Thread lianwei Wang
Hello Jeff Dike, I find from the UML website that the UML can access the host PCI device accessing with VPCI patch, but it seem that that VPCI patch is too old. Do you know that latest information about the VPCI patch? Is it stable? And where could I find the patch? >From the below mail you say t