On Sun, May 12, 2013 at 8:45 PM, Toralf Förster <toralf.foers...@gmx.de> wrote: > On 05/12/2013 06:31 PM, richard -rw- weinberger wrote: >> Toralf, can you please replace stub_pte_fix.diff with the attached patch? > > Hhm, > > ok, now it tooks hours than minutes, but : > > 013-05-12T20:37:17.000+02:00 trinity tfoerste: M=/mnt/nfs/n22 > 2013-05-12T20:37:17.000+02:00 trinity sshd[2344]: pam_unix(sshd:session): > session closed for user tfoerste > 2013-05-12T20:40:01.000+02:00 trinity cron[2400]: (root) CMD (test -x > /usr/sbin/run-crons && /usr/sbin/run-crons) > 2013-05-12T20:40:47.755+02:00 trinity kernel: ------------[ cut here > ]------------ > 2013-05-12T20:40:47.755+02:00 trinity kernel: WARNING: at mm/mmap.c:2757 > exit_mmap+0x164/0x190() > 2013-05-12T20:40:47.755+02:00 trinity kernel: CPU: 0 PID: 2422 Comm: > trinity-child0 Not tainted 3.10.0-rc1-00002-gc17b38f #6 > 2013-05-12T20:40:47.755+02:00 trinity kernel: 408f7d9c 408f7dc8 0807bfba > 083d51b0 083d9a6e 00000ac5 080eb8e4 080eb8e4 > 2013-05-12T20:40:47.755+02:00 trinity kernel: 000007d8 40b026c0 3fdbe93c > 408f7dd8 0807c083 00000009 00000000 408f7e10 > 2013-05-12T20:40:47.755+02:00 trinity kernel: 080eb8e4 083d9a6e 00000ac5 > c0000000 00000000 25d1f5d8 40b026c0 00000000 408f7d70: [<08060cff>] > show_stack+0xcf/0x100 > 2013-05-12T20:40:47.755+02:00 trinity kernel: 408f7d94: [<0835ed89>] > dump_stack+0x26/0x28 > 2013-05-12T20:40:47.755+02:00 trinity kernel: 408f7da4: [<0807bfba>] > warn_slowpath_common+0x5a/0x80 > 2013-05-12T20:40:47.755+02:00 trinity kernel: 408f7dcc: [<0807c083>] > warn_slowpath_null+0x23/0x30 > 2013-05-12T20:40:47.755+02:00 trinity kernel: 408f7ddc: [<080eb8e4>] > exit_mmap+0x164/0x190 > 2013-05-12T20:40:47.757+02:00 trinity kernel: 408f7e14: [<0807990d>] > mmput+0x3d/0xb0 > 2013-05-12T20:40:47.757+02:00 trinity kernel: 408f7e28: [<08081076>] > do_exit+0x2f6/0x880 > 2013-05-12T20:40:47.757+02:00 trinity kernel: 408f7e78: [<080816e9>] > do_group_exit+0xa9/0xf0 > 2013-05-12T20:40:47.757+02:00 trinity kernel: 408f7ea0: [<08081749>] > SyS_exit_group+0x19/0x20 > 2013-05-12T20:40:47.757+02:00 trinity kernel: 408f7eac: [<08062ab2>] > handle_syscall+0x82/0xb0 > 2013-05-12T20:40:47.757+02:00 trinity kernel: 408f7ef4: [<0807518d>] > userspace+0x46d/0x590 > 2013-05-12T20:40:47.757+02:00 trinity kernel: 408f7fec: [<0805f7fc>] > fork_handler+0x6c/0x70 > 2013-05-12T20:40:47.757+02:00 trinity kernel: 408f7ffc: [<00000000>] 0x0 > 2013-05-12T20:40:47.757+02:00 trinity kernel: > 2013-05-12T20:40:47.757+02:00 trinity kernel: ---[ end trace 610449969e20fc68 > ]--- > 2013-05-12T20:40:47.758+02:00 trinity kernel: XXX mm->nr_ptes: 4294967295 > 2013-05-12T20:40:50.000+02:00 trinity sshd[2350]: pam_unix(sshd:session): > session closed for user tfoerste
Damn, we've underrun the counter. :-\ Can you please test the attached 3rd debug patch? The problem is that we have to install a mapping for the stub pages. This mapping must not have a VMA. Otherwise a UML user process could change this mapping. So, we have to insert PTEs manually and play nasty games with mm->nr_ptes. -- Thanks, //richard ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
