linux-kernel - linux-3.2.9: OOPS in arch_get_unmapped_area

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Date:	Thu, 08 Mar 2012 09:17:54 +0100
From:	Martin Mokrejs <mmokrejs@...d.natur.cuni.cz>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: linux-3.2.9: OOPS in arch_get_unmapped_area_topdown()

Hi,
  does the below stacktrace of a crash on Core i7-based laptop help
somebody to come up with a fix? I found by Google some other reports
from the past. I can provide a .config or other information if you want.

Mar  7 18:47:53 vostro kernel: CPU 1 
Mar  7 18:47:53 vostro kernel: Modules linked in: usb_storage option usb_wwan usbserial cdc_ether uas usbnet
Mar  7 18:47:53 vostro kernel: 
Mar  7 18:47:53 vostro kernel: Pid: 26410, comm: X Not tainted 3.2.9-default #2 Dell Inc. Vostro 3550/0JGC48
Mar  7 18:47:53 vostro kernel: RIP: 0010:[<ffffffff810dc0e0>]  [<ffffffff810dc0e0>] find_vma+0x2c/0x5a
Mar  7 18:47:53 vostro kernel: RSP: 0018:ffff88040d38de18  EFLAGS: 00010202
Mar  7 18:47:53 vostro kernel: RAX: ffff880206a721e0 RBX: ffff88040c6564c0 RCX: 38313d79782033f9
Mar  7 18:47:53 vostro kernel: RDX: 38313d7978203431 RSI: 00007fbab4bd7000 RDI: ffff88040c6564c0
Mar  7 18:47:53 vostro kernel: RBP: ffff88040d38de18 R08: 0000000000000001 R09: ffff88040c6564c0
Mar  7 18:47:53 vostro kernel: R10: 0000000000000001 R11: 0000000000003246 R12: 0000000000038000
Mar  7 18:47:53 vostro kernel: R13: 0000000000000000 R14: ffff88040eaf2780 R15: 00000000001059b2
Mar  7 18:47:53 vostro kernel: FS:  00007fbaba86f880(0000) GS:ffff88041fa80000(0000) knlGS:0000000000000000
Mar  7 18:47:53 vostro kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Mar  7 18:47:53 vostro kernel: CR2: 00007fbab4ff1130 CR3: 000000040bbf7000 CR4: 00000000000406e0
Mar  7 18:47:53 vostro kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Mar  7 18:47:53 vostro kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Mar  7 18:47:53 vostro kernel: Process X (pid: 26410, threadinfo ffff88040d38c000, task ffff88040c4b78d0)
Mar  7 18:47:53 vostro kernel:  ffff88040d38de68 ffffffff8102f434 00007fbab4bd7000 0000000000000001
Mar  7 18:47:53 vostro kernel:  0000000000000000 0000000000038000 ffff88040eaf2780 ffff88040c4b78d0
Mar  7 18:47:53 vostro kernel:  0000000000000001 0000000000000003 ffff88040d38de88 ffffffff810dc1ae
Mar  7 18:47:53 vostro kernel:  [<ffffffff8102f434>] arch_get_unmapped_area_topdown+0x1cc/0x294
Mar  7 18:47:53 vostro kernel:  [<ffffffff810dc1ae>] get_unmapped_area+0x9a/0x10e
Mar  7 18:47:53 vostro kernel:  [<ffffffff810de3df>] do_mmap_pgoff+0xf1/0x2f0
Mar  7 18:47:53 vostro kernel:  [<ffffffff810de6cf>] sys_mmap_pgoff+0xf1/0x129
Mar  7 18:47:53 vostro kernel:  [<ffffffff81105b6e>] ? sys_ioctl+0x42/0x68
Mar  7 18:47:53 vostro kernel:  [<ffffffff8102f00d>] sys_mmap+0x1d/0x1f
Mar  7 18:47:53 vostro kernel:  [<ffffffff8162f312>] system_call_fastpath+0x16/0x1b
Mar  7 18:47:53 vostro kernel:  RSP <ffff88040d38de18>
Mar  7 18:47:53 vostro kernel: ---[ end trace 6d84d133cdb77497 ]---
Mar  7 18:49:41 vostro kernel: SysRq : Emergency Sync
Mar  7 18:49:41 vostro kernel: Emergency Sync complete



Thank you for comments,
Martin
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