From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:55137) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S0d6N-0004Lq-A5 for qemu-devel@nongnu.org; Thu, 23 Feb 2012 13:09:15 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S0d6L-0007uL-Kq for qemu-devel@nongnu.org; Thu, 23 Feb 2012 13:09:11 -0500 Received: from e28smtp01.in.ibm.com ([122.248.162.1]:37076) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S0d6L-0007il-2L for qemu-devel@nongnu.org; Thu, 23 Feb 2012 13:09:09 -0500 Received: from /spool/local by e28smtp01.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 23 Feb 2012 23:38:33 +0530 Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay05.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q1NI8PvQ3633270 for ; Thu, 23 Feb 2012 23:38:26 +0530 Received: from d28av01.in.ibm.com (loopback [127.0.0.1]) by d28av01.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q1NI8PVj014296 for ; Thu, 23 Feb 2012 23:38:25 +0530 From: "Aneesh Kumar K.V" In-Reply-To: References: <87boowt52t.fsf@linux.vnet.ibm.com> Date: Thu, 23 Feb 2012 23:38:18 +0530 Message-ID: <87d395zalp.fsf@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Re: [Qemu-devel] VirtIO 9p mount_tag (bogus?) limit of 32 bytes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: C Anthony Risinger Cc: qemu-devel@nongnu.org On Tue, 21 Feb 2012 21:58:39 -0600, C Anthony Risinger wrote: > On Sat, Feb 18, 2012 at 11:38 AM, Aneesh Kumar K.V > wrote: > > On Thu, 16 Feb 2012 06:20:21 -0600, C Anthony Risinger wrote: > >> a) mapped FS security policy (xattrs) causes `ldconfig` to abort()? > >> root or normal user ... > >> > >> somehow `ldconfig` gets a duplicate inode while constructing the > >> cache, even though it already de-duped (confirmed via gdb and grep -- > >> only a single abort() in the source) > >> I will try to reproduce this to get more info. > >> b) unable to run `locale-gen` on *any* virtfs configuration? (strace) > >> > >> [...] > >> mmap(NULL, 536870912, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = > >> 0x7fb3aac63000 > >> mmap(0x7fb3aac63000, 103860, PROT_READ|PROT_WRITE, > >> MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument) > >> cannot map archive header: Invalid argument > >> For writable mmap to work you need to mount with -o cache=loose. Did you try local-gen with that mount option ? > >> c) package files containing device nodes fail (maybe this is expected > >> ...); specifically `/lib/udev/devices/loop0` > >> > > Does this mean mknod fails for you. Or is something else in package manager causing the failure ? > > Is this with 9p2000.L ?. What is the guest kernel version ? > > (not sure if list will accept this ... too much traffic! had to remove myself) > > yes this is with 9p2000.L, both host and guests run kernel 3.2.5. i'm > happy to provide/try additional information/tests if useful. > One quick thing you could do is to try latest linus kernel as the guest kernel. > ... is there really no chance of upping the max path? seems like > config space will be a big constraint, forever :-( > > and i'm very much willing to do additional testing for the other > issues as well (i had to revert to qemu-as-root to get passthru > working 100% on rootfs ... ldconfig is kind of critical :-). are > these known issues? > I don't have much suggestion on what could be going wrong there. I will try to reproduce the ldconfig issue here. -aneesh