From: Fengguang Wu <fengguang.wu@intel.com>
To: Dave Jones <davej@redhat.com>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: vma_resv_map bug.
Date: Fri, 1 Jun 2012 17:13:32 +0800 [thread overview]
Message-ID: <20120601091332.GA14623@localhost> (raw)
In-Reply-To: <20120530052716.GA12771@redhat.com>
On Wed, May 30, 2012 at 01:27:17AM -0400, Dave Jones wrote:
> Since c50ac050811d6485616a193eb0f37bfbd191cc89, I can trigger this fairly easily
> using my syscall fuzzer.
>
> Dave
The same error here. Here is my dmesg. Hope it helps.
[ 497.674360] trinity-child0 (31412): Using mlock ulimits for SHM_HUGETLB is deprecated
[ 502.461866] warning: process `trinity-child0' used the deprecated sysctl system call with
[ 502.576500] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
[ 502.577028] IP: [<ffffffff81135bed>] vma_resv_map+0x9/0x2b
[ 502.577028] PGD a012067 PUD a86b067 PMD 0
[ 502.577028] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[ 502.577028] CPU 0
[ 502.577028] Modules linked in:
[ 502.577028]
[ 502.577028] Pid: 31442, comm: trinity-child0 Not tainted 3.4.0+ #7 Bochs Bochs
[ 502.577028] RIP: 0010:[<ffffffff81135bed>] [<ffffffff81135bed>] vma_resv_map+0x9/0x2b
[ 502.577028] RSP: 0018:ffff88000a80bd58 EFLAGS: 00010246
[ 502.577028] RAX: 00000000fffffff4 RBX: 0000000000000000 RCX: 0000007503e4bb9c
[ 502.577028] RDX: 000000000002bdc0 RSI: 0000000000000001 RDI: 0000000000000000
[ 502.577028] RBP: ffff88000a80bd58 R08: 0000000000000000 R09: 0000000000000000
[ 502.577028] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 502.577028] R13: 0000000000000001 R14: fffffffffffffff4 R15: ffff88000e3d8498
[ 502.577028] FS: 00007feb4db7d700(0000) GS:ffff88000f400000(0000) knlGS:0000000000000000
[ 502.577028] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 502.577028] CR2: 0000000000000030 CR3: 0000000006d09000 CR4: 00000000000006f0
[ 502.577028] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 502.577028] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 502.577028] Process trinity-child0 (pid: 31442, threadinfo ffff88000a80a000, task ffff8800055ba2a0)
[ 502.577028] Stack:
[ 502.577028] ffff88000a80bd68 ffffffff81135c1d ffff88000a80bdc8 ffffffff811385b0
[ 502.577028] 0000000000000000 ffffffff82a96ec0 0000000000000001 0000000000000000
[ 502.577028] ffff88000e3b2520 0000000000001001 ffff88000aa8cec0 ffff88000e3d8498
[ 502.577028] Call Trace:
[ 502.577028] [<ffffffff81135c1d>] resv_map_put+0xe/0x28
[ 502.577028] [<ffffffff811385b0>] hugetlb_reserve_pages+0x18c/0x1a5
[ 502.577028] [<ffffffff812355a4>] hugetlb_file_setup+0x181/0x255
[ 502.577028] [<ffffffff813bedc0>] newseg+0xe2/0x25a
[ 502.577028] [<ffffffff813bb1fb>] ? ipcget+0xad/0x1fd
[ 502.577028] [<ffffffff813bb297>] ipcget+0x149/0x1fd
[ 502.577028] [<ffffffff813bf09a>] sys_shmget+0x5a/0x5e
[ 502.577028] [<ffffffff813becde>] ? shm_try_destroy_orphaned+0x72/0x72
[ 502.577028] [<ffffffff813be645>] ? shm_get_unmapped_area+0x20/0x20
[ 502.577028] [<ffffffff813be652>] ? shm_security+0xd/0xd
[ 502.577028] [<ffffffff819cbee9>] system_call_fastpath+0x16/0x1b
[ 502.577028] Code: 40 74 02 0f 0b 48 89 f8 66 66 66 90 48 d1 e8 83 e0 1f 83 f8 1c 76 da 83 f8 1d 0f 94 c0 0f b6 c0 5d c3 55 48 89 e5 66 66 66 66 90 <48> 8b 47 30 a9 00 00 40 00 75 02 0f 0b a8 80 75 0d 48 8b 87 a0
[ 502.577028] RIP [<ffffffff81135bed>] vma_resv_map+0x9/0x2b
[ 502.577028] RSP <ffff88000a80bd58>
[ 502.577028] CR2: 0000000000000030
[ 502.638645] ---[ end trace 61d67b4c1e7a2c5d ]---
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
> IP: [<ffffffff81182959>] vma_resv_map+0x9/0x30
> PGD 141453067 PUD 1421e1067 PMD 0
> Oops: 0000 [#1] PREEMPT SMP
> CPU 6
> Modules linked in: binfmt_misc caif_socket caif phonet bluetooth rfkill can llc2 pppoe pppox ppp_generic slhc irda crc_ccitt rds af_key decnet rose x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode serio_raw pcspkr i2c_i801 lpc_ich mfd_core e1000e nfsd nfs_acl auth_rpcgss lockd sunrpc i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: scsi_wait_scan]
>
> Pid: 14006, comm: trinity-child6 Not tainted 3.4.0+ #36
> RIP: 0010:[<ffffffff81182959>] [<ffffffff81182959>] vma_resv_map+0x9/0x30
> RSP: 0018:ffff8801414e1d48 EFLAGS: 00010246
> RAX: 00000000fffffff4 RBX: 0000000000000000 RCX: 000000000000b990
> RDX: 00000000fffffff4 RSI: 0000000000000001 RDI: 0000000000000000
> RBP: ffff8801414e1d48 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
> R13: 0000000000000001 R14: 0000000000000001 R15: ffff88013febf0d0
> FS: 00007fc3866f5740(0000) GS:ffff880148800000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000030 CR3: 00000001437b1000 CR4: 00000000001407e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process trinity-child6 (pid: 14006, threadinfo ffff8801414e0000, task ffff8801414f26b0)
> Stack:
> ffff8801414e1d58 ffffffff81182cde ffff8801414e1db8 ffffffff81185fe6
> 0000000000008000 00000000fffffff4 ffffffff82a24ce0 0000000000000000
> ffff8801414e1db8 ffff88013febf0d0 0000000000000001 ffff880137b05c20
> Call Trace:
> [<ffffffff81182cde>] resv_map_put+0xe/0x40
> [<ffffffff81185fe6>] hugetlb_reserve_pages+0xa6/0x1d0
> [<ffffffff8128c312>] hugetlb_file_setup+0x102/0x2c0
> [<ffffffff812a1a25>] newseg+0x115/0x360
> [<ffffffff8129bcfe>] ipcget+0x1ce/0x310
> [<ffffffff812a1e6a>] sys_shmget+0x5a/0x60
> [<ffffffff812a1910>] ? shmctl_down.constprop.14+0x180/0x180
> [<ffffffff812a0f90>] ? shm_release+0x50/0x50
> [<ffffffff812a0f20>] ? shm_get_unmapped_area+0x20/0x20
> [<ffffffff816613d2>] system_call_fastpath+0x16/0x1b
> Code: 40 30 48 8b 40 28 48 8b 80 b0 05 00 00 48 8b 40 58 8b 48 08 b8 01 00 00 00 83 c1 0c 48 d3 e0 c3 66 90 55 48 89 e5 66 66 66 66 90 <48> 8b 47 30 a9 00 00 40 00 74 18 a8 80 75 10 48 8b 87 a0 00 00
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
next prev parent reply other threads:[~2012-06-01 9:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 5:27 vma_resv_map bug Dave Jones
2012-06-01 9:13 ` Fengguang Wu [this message]
2012-06-01 14:04 ` Dave Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120601091332.GA14623@localhost \
--to=fengguang.wu@intel.com \
--cc=dave@linux.vnet.ibm.com \
--cc=davej@redhat.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.