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Message-ID: <514239F7.3050704@gmx.de> Date: Thu, 14 Mar 2013 21:58:31 +0100 From: Toralf Förster <toralf.foerster@....de> To: richard -rw- weinberger <richard.weinberger@...il.com> CC: linux-mm@...ck.org, user-mode-linux-user@...ts.sourceforge.net, Dave Jones <davej@...hat.com>, Linux Kernel <linux-kernel@...r.kernel.org> Subject: Re: SLUB + UML : WARNING: at mm/page_alloc.c:2386 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 -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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