Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1946687AbWKAICG (ORCPT ); Wed, 1 Nov 2006 03:02:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1946685AbWKAICG (ORCPT ); Wed, 1 Nov 2006 03:02:06 -0500 Received: from mga01.intel.com ([192.55.52.88]:53340 "EHLO mga01.intel.com") by vger.kernel.org with ESMTP id S1946687AbWKAICD (ORCPT ); Wed, 1 Nov 2006 03:02:03 -0500 X-ExtLoop1: 1 X-IronPort-AV: i="4.09,377,1157353200"; d="scan'208"; a="155710222:sNHT20071380" Message-ID: <45485478.8060909@intel.com> Date: Wed, 01 Nov 2006 16:02:00 +0800 From: "bibo,mao" User-Agent: Thunderbird 1.5.0.7 (Windows/20060909) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: [BUG] 2.6.19-rc3 autofs crash on my IA64 box Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4283 Lines: 82 hi, 2.6.19-rc3 kernel crashes on my IA64 box, it seems the problem of autofs fs. I debug this problem, if autofs kernel does not match daemon version, it will call autofs_catatonic_mode. But at that time sbi->pipe is NULL. void autofs_catatonic_mode(struct autofs_sb_info *sbi) { ......... fput(sbi->pipe); /* Close the pipe */ ^^^^^^^^^^^^ sbi->pipe seems NULL; autofs_hash_dputall(&sbi->dirhash); /* Remove all dentry pointers */ } Starting automount: autofs: kernel does not match daemon version Unable to handle kernel NULL pointer dereference (address 0000000000000028) automount[3197]: Oops 8821862825984 [1] Modules linked in: sunrpc binfmt_misc dm_mirror dm_mod thermal processor fan cod Pid: 3188, CPU 1, comm: automount psr : 00001010085a6010 ifs : 8000000000000205 ip : [] Notd ip is at fput+0x20/0x60 unat: 0000000000000000 pfs : 000000000000038b rsc : 0000000000000003 rnat: 00000000000000a0 bsps: 000000000001003e pr : 40a80004065625a9 ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c0270033f csd : 0000000000000000 ssd : 0000000000000000 b0 : a0000001001f4d00 b6 : a0000001001f2600 b7 : a000000100155c00 f6 : 1003e0000000000000000 f7 : 1003e00000000000000a0 f8 : 1003e0000000000000001 f9 : 1003e0000000000000001 f10 : 000000000000000000000 f11 : 000000000000000000000 r1 : a0000001009e6e10 r2 : 0000000000000028 r3 : e0000001f881c008 r8 : 0000000000000001 r9 : 0000000040000000 r10 : ffffffffc0000001 r11 : 0000000000000018 r12 : e0000001fab4fbe0 r13 : e0000001fab48000 r14 : 0000000000000001 r15 : 0000000000000038 r16 : e0000001f881c030 r17 : 00000000ffffffff r18 : e0000002fffa0f88 r19 : 0000000000000001 r20 : e0000001fab48b64 r21 : a0007fffff1971b0 r22 : e0000002fff95198 r23 : e0000002fff95188 r24 : 0000000000000001 r25 : 0000000000000000 r26 : 0000000000000009 r27 : 0000000000000000 r28 : a018000000000000 r29 : 8000000000000080 r30 : 0000000000000000 r31 : a0000001007fb2cc Call Trace: [] show_stack+0x40/0xa0 sp=e0000001fab4f770 bsp=e0000001fab48fa0 [] show_regs+0x840/0x880 sp=e0000001fab4f940 bsp=e0000001fab48f48 [] die+0x1c0/0x2c0 sp=e0000001fab4f940 bsp=e0000001fab48f00 [] ia64_do_page_fault+0x930/0xa60 sp=e0000001fab4f960 bsp=e0000001fab48eb0 [] ia64_leave_kernel+0x0/0x280 sp=e0000001fab4fa10 bsp=e0000001fab48eb0 [] fput+0x20/0x60 sp=e0000001fab4fbe0 bsp=e0000001fab48e88 [] autofs_catatonic_mode+0xe0/0x120 sp=e0000001fab4fbe0 bsp=e0000001fab48e50 [] autofs_kill_sb+0x40/0x140 sp=e0000001fab4fbe0 bsp=e0000001fab48e20 [] deactivate_super+0xd0/0x120 sp=e0000001fab4fbe0 bsp=e0000001fab48de8 [] get_sb_nodev+0xe0/0x160 sp=e0000001fab4fbe0 bsp=e0000001fab48da0 [] autofs_get_sb+0x40/0x60 sp=e0000001fab4fbe0 bsp=e0000001fab48d60 [] vfs_kern_mount+0xa0/0x160 sp=e0000001fab4fbe0 bsp=e0000001fab48d18 [] do_kern_mount+0x60/0xa0 sp=e0000001fab4fbe0 bsp=e0000001fab48cd8 [] do_mount+0xce0/0xde0 sp=e0000001fab4fbe0 bsp=e0000001fab48c80 [] sys_mount+0xf0/0x1c0 sp=e0000001fab4fe10 bsp=e0000001fab48be8 [] ia64_ret_from_syscall+0x0/0x20 sp=e0000001fab4fe30 bsp=e0000001fab48be8 [] __kernel_syscall_via_break+0x0/0x20 sp=e0000001fab50000 bsp=e0000001fab48be8 - 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/