Re: SLUB + UML : WARNING: at mm/page_alloc.c:2386

Toralf Förster
2013-03-14T20:58:38Z

On 03/14/2013 09:51 PM, richard -rw- weinberger wrote:
> Can you please re-run with the attached patch.
> I'm wondering how much memory is requested.
>>From reading the source I'd say it must be less than PAGE_SIZE.
> But such a small allocation would not trigger the WARN_ON()...

2013-03-14T21:56:58.000+01:00 trinity sshd[1158]: pam_unix(sshd:session): session opened for user tfoerste by (uid=0)
2013-03-14T21:56:59.852+01:00 trinity kernel: memdup_user: -14
2013-03-14T21:56:59.852+01:00 trinity kernel: ------------[ cut here ]------------
2013-03-14T21:56:59.852+01:00 trinity kernel: WARNING: at mm/page_alloc.c:2386 __alloc_pages_nodemask+0x153/0x750()
2013-03-14T21:56:59.852+01:00 trinity kernel: 38bfbd14: [<08342dd8>] dump_stack+0x22/0x24
2013-03-14T21:56:59.852+01:00 trinity kernel: 38bfbd2c: [<0807d0da>] warn_slowpath_common+0x5a/0x80
2013-03-14T21:56:59.852+01:00 trinity kernel: 38bfbd54: [<0807d1a3>] warn_slowpath_null+0x23/0x30
2013-03-14T21:56:59.852+01:00 trinity kernel: 38bfbd64: [<080d3213>] __alloc_pages_nodemask+0x153/0x750
2013-03-14T21:56:59.852+01:00 trinity kernel: 38bfbdf0: [<080d3838>] __get_free_pages+0x28/0x50
2013-03-14T21:56:59.852+01:00 trinity kernel: 38bfbe08: [<080fc48f>] __kmalloc_track_caller+0x3f/0x180
2013-03-14T21:56:59.852+01:00 trinity kernel: 38bfbe30: [<080dec82>] memdup_user+0x32/0x70
2013-03-14T21:56:59.853+01:00 trinity kernel: 38bfbe4c: [<080dee7e>] strndup_user+0x3e/0x60
2013-03-14T21:56:59.853+01:00 trinity kernel: 38bfbe68: [<0811b440>] copy_mount_string+0x30/0x50
2013-03-14T21:56:59.853+01:00 trinity kernel: 38bfbe7c: [<0811be0a>] sys_mount+0x1a/0xe0
2013-03-14T21:56:59.853+01:00 trinity kernel: 38bfbeac: [<08062a92>] handle_syscall+0x82/0xb0
2013-03-14T21:56:59.853+01:00 trinity kernel: 38bfbef4: [<08074e7d>] userspace+0x46d/0x590
2013-03-14T21:56:59.853+01:00 trinity kernel: 38bfbfec: [<0805f7cc>] fork_handler+0x6c/0x70
2013-03-14T21:56:59.853+01:00 trinity kernel: 38bfbffc: [<5a5a5a5a>] 0x5a5a5a5a
2013-03-14T21:56:59.853+01:00 trinity kernel:
2013-03-14T21:56:59.853+01:00 trinity kernel: ---[ end trace 5bf182a223bd623c ]---
2013-03-14T21:56:59.853+01:00 trinity kernel: memdup_user: -14
2013-03-14T21:56:59.942+01:00 trinity kernel: VFS: Warning: trinity-child0 using old stat() call. Recompile your binary.
2013-03-14T21:56:59.942+01:00 trinity kernel: VFS: Warning: trinity-child0 using old stat() call. Recompile your binary.
2013-03-14T21:56:59.942+01:00 trinity kernel: VFS: Warning: trinity-child0 using old stat() call. Recompile your binary.
2013-03-14T21:57:01.000+01:00 trinity sshd[1160]: Received disconnect from 192.168.0.254: 11: disconnected by user
2013-03-14T21:57:01.000+01:00 trinity sshd[1158]: pam_unix(sshd:session): session closed for user tfoerste
2013-03-14T21:57:09.087+01:00 trinity kernel: memdup_user: -14
2013-03-14T21:57:18.191+01:00 trinity kernel: memdup_user: 4089
2013-03-14T21:57:26.236+01:00 trinity kernel: memdup_user: 28