With further narrowing down, I''ve isolated my FC6/xen crashes to mounting a CIFS volume. A single mount is all that is required to cause the kernel oops. Please see fedora bugzilla # 214622. It looks as though the base kernel has been patched, but the xenified kernel has not. (?) If the xen kernels have been patched, then the problem still exists. Doesn''t matter whether the Windows share is mounted rw or ro. Same behavior. No IO required. After the mount, the machine will crash within a minute or so, virtually every time so it should be easy to test. Can anyone tell me when the non-xen CIFS kernel patch will make it into the xen kernels? This bug has been driving me crazy. Thanks, Dave [root@firewall2 ~]# uname -a Linux firewall2.xxxxxxx.com 2.6.19-1.2895.fc6xen #1 SMP Wed Jan 10 19:47:12 EST 2007 i686 athlon i386 GNU/Linux
On 1/25/07, master@bradleyland.com <master@bradleyland.com> wrote:> With further narrowing down, I''ve isolated my FC6/xen crashes to mounting > a CIFS volume. A single mount is all that is required to cause the kernel > oops. > > Please see fedora bugzilla # 214622. > > It looks as though the base kernel has been patched, but the xenified > kernel has not. (?) If the xen kernels have been patched, then the problem > still exists. > > Doesn''t matter whether the Windows share is mounted rw or ro. Same > behavior. No IO required. After the mount, the machine will crash within a > minute or so, virtually every time so it should be easy to test. > > Can anyone tell me when the non-xen CIFS kernel patch will make it into > the xen kernels? This bug has been driving me crazy. > > Thanks, > > Dave > > [root@firewall2 ~]# uname -a > Linux firewall2.xxxxxxx.com 2.6.19-1.2895.fc6xen #1 SMP Wed Jan 10 > 19:47:12 EST 2007 i686 athlon i386 GNU/LinuxI have this exact same kernel, but in the amd64 variant, and am mounting a CIFS filesystem exported from another Fedora 6 box without difficulty. No crashes or anything. Is this i386-specific? Jeremy [jeremy@vulcan ~]$ uname -a Linux vulcan.internal.jutley.org 2.6.19-1.2895.fc6xen #1 SMP Wed Jan 10 19:09:13 EST 2007 x86_64 x86_64 x86_64 GNU/Linux [jeremy@vulcan ~]$ mount | grep cifs //hurricane/storage on /mnt/storage type cifs (rw,mand)
> > I have this exact same kernel, but in the amd64 variant, and am > mounting a CIFS filesystem exported from another Fedora 6 box without > difficulty. No crashes or anything. Is this i386-specific? > > Jeremy > > [jeremy@vulcan ~]$ uname -a > Linux vulcan.internal.jutley.org 2.6.19-1.2895.fc6xen #1 SMP Wed Jan > 10 19:09:13 EST 2007 x86_64 x86_64 x86_64 GNU/Linux > [jeremy@vulcan ~]$ mount | grep cifs > //hurricane/storage on /mnt/storage type cifs (rw,mand) > > -- > Fedora-xen mailing list > Fedora-xen@redhat.com > https://www.redhat.com/mailman/listinfo/fedora-xen >Hmmm, interesting. I don''t know as I''m not running any 64bit hardware. I can bring down either dom0 or domU with a single mount. Have you tried mounting a "real" Windows share? Probably doesn''t make any difference though... The patch exists. If I get tired of waiting, I''ll get the kernel sources, put in the patch and compile it myself. Just a hassle.
On 1/25/07, master@bradleyland.com <master@bradleyland.com> wrote:> Hmmm, interesting. I don''t know as I''m not running any 64bit hardware. I > can bring down either dom0 or domU with a single mount. > > Have you tried mounting a "real" Windows share? Probably doesn''t make any > difference though... > > The patch exists. If I get tired of waiting, I''ll get the kernel sources, > put in the patch and compile it myself. Just a hassle. > >Just on a whim, I tried mounting a share on my Windows 2003 server box here at home, and it mounted just fine as well. Unfortunately, I don''t have any regular X86 boxes here running the Xen kernel, so I can''t really tell for sure what would happen doing this on a normal X86 machine. It''s strange, but even using older Fedora 6 kernels on X86, I haven''t had any issues *MOUNTING* a cifs partition - but I would find that I couldn''t read those files properly at one time. Jeremy