Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754886Ab3FKLLP (ORCPT ); Tue, 11 Jun 2013 07:11:15 -0400 Received: from icebox.esperi.org.uk ([81.187.191.129]:37368 "EHLO mail.esperi.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754118Ab3FKLLL (ORCPT ); Tue, 11 Jun 2013 07:11:11 -0400 From: Nix To: Al Viro Cc: linux-kernel@vger.kernel.org Subject: Re: NFS/lazy-umount/path-lookup-related panics at shutdown (at kill of processes on lazy-umounted filesystems) with 3.9.2 and 3.9.5 References: <871u89vp46.fsf@spindle.srvr.nix> <20130611031529.GD4165@ZenIV.linux.org.uk> Emacs: freely redistributable; void where prohibited by law. Date: Tue, 11 Jun 2013 12:11:03 +0100 In-Reply-To: <20130611031529.GD4165@ZenIV.linux.org.uk> (Al Viro's message of "Tue, 11 Jun 2013 04:15:29 +0100") Message-ID: <87k3m0sy0o.fsf@spindle.srvr.nix> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-DCC-URT-Metrics: spindle 1060; Body=2 Fuz1=2 Fuz2=2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 25107 Lines: 463 On 11 Jun 2013, Al Viro spake thusly: > On Mon, Jun 10, 2013 at 06:42:49PM +0100, Nix wrote: >> Yes, my shutdown scripts are panicking the kernel again! They're not >> causing filesystem corruption this time, but it's still fs-related. >> >> Here's the 3.9.5 panic, seen on an x86-32 NFS client using NFSv3: NFSv4 >> was compiled in but not used. This happened when processes whose >> current directory was on one of those NFS-mounted filesystems were being >> killed, after it had been lazy-umounted (so by this point its cwd was in >> a disconnected mount point). > > Hrm... Could you post (or drop on anonftp, etc.) disassembly of path_init() from > your kernel? The code quoted in oops looks very odd... Sure! The compiler is GCC 4.7.3 20130310 (so not on a release branch: it is possible this is an already-fixed compiler bug). Both x86-32 and x86-64 disassemblies follow: x86: 0000083f : 83f: 55 push %ebp 840: 57 push %edi 841: 56 push %esi 842: 53 push %ebx 843: 83 ec 0c sub $0xc,%esp 846: 89 d5 mov %edx,%ebp 848: 89 ca mov %ecx,%edx 84a: 89 cf mov %ecx,%edi 84c: 8b 5c 24 20 mov 0x20(%esp),%ebx 850: 80 ce 10 or $0x10,%dh 853: f6 c5 20 test $0x20,%ch 856: c7 43 28 01 00 00 00 movl $0x1,0x28(%ebx) 85d: 89 53 20 mov %edx,0x20(%ebx) 860: c7 43 2c 00 00 00 00 movl $0x0,0x2c(%ebx) 867: 74 6c je 8d5 869: 8b 43 18 mov 0x18(%ebx),%eax 86c: 80 7d 00 00 cmpb $0x0,0x0(%ebp) 870: 8b 70 20 mov 0x20(%eax),%esi 873: 74 21 je 896 875: f6 46 02 02 testb $0x2,0x2(%esi) 879: 0f 85 12 02 00 00 jne a91 87f: 8b 46 18 mov 0x18(%esi),%eax 882: 83 38 00 cmpl $0x0,(%eax) 885: 75 05 jne 88c 887: e9 9a 01 00 00 jmp a26 88c: 66 83 4e 02 02 orw $0x2,0x2(%esi) 891: e9 fb 01 00 00 jmp a91 896: 8b 43 14 mov 0x14(%ebx),%eax 899: 8b 53 18 mov 0x18(%ebx),%edx 89c: 89 03 mov %eax,(%ebx) 89e: 89 53 04 mov %edx,0x4(%ebx) 8a1: 89 73 1c mov %esi,0x1c(%ebx) 8a4: 83 e7 40 and $0x40,%edi 8a7: 74 20 je 8c9 8a9: b8 00 00 00 00 mov $0x0,%eax 8ae: e8 fc ff ff ff call 8af 8b3: 8b 53 04 mov 0x4(%ebx),%edx 8b6: 8b 42 04 mov 0x4(%edx),%eax 8b9: a8 01 test $0x1,%al 8bb: 74 04 je 8c1 8bd: f3 90 pause 8bf: eb f5 jmp 8b6 8c1: 89 43 24 mov %eax,0x24(%ebx) 8c4: e9 bd 01 00 00 jmp a86 8c9: 89 d8 mov %ebx,%eax 8cb: e8 fc ff ff ff call 8cc 8d0: e9 b1 01 00 00 jmp a86 8d5: c7 43 14 00 00 00 00 movl $0x0,0x14(%ebx) 8dc: 80 7d 00 2f cmpb $0x2f,0x0(%ebp) 8e0: 0f 85 8b 00 00 00 jne 971 8e6: 83 e7 40 and $0x40,%edi 8e9: 74 4e je 939 8eb: b8 00 00 00 00 mov $0x0,%eax 8f0: e8 fc ff ff ff call 8f1 8f5: 83 7b 14 00 cmpl $0x0,0x14(%ebx) 8f9: 75 66 jne 961 8fb: a1 00 00 00 00 mov 0x0,%eax 900: 8b 88 54 02 00 00 mov 0x254(%eax),%ecx 906: 8b 71 04 mov 0x4(%ecx),%esi 909: f7 c6 01 00 00 00 test $0x1,%esi 90f: 74 04 je 915 911: f3 90 pause 913: eb f1 jmp 906 915: 8b 51 14 mov 0x14(%ecx),%edx 918: 8b 41 10 mov 0x10(%ecx),%eax 91b: 89 53 18 mov %edx,0x18(%ebx) 91e: 89 43 14 mov %eax,0x14(%ebx) 921: 8b 53 18 mov 0x18(%ebx),%edx 924: 8b 42 04 mov 0x4(%edx),%eax 927: a8 01 test $0x1,%al 929: 74 04 je 92f 92b: f3 90 pause 92d: eb f5 jmp 924 92f: 89 43 24 mov %eax,0x24(%ebx) 932: 39 71 04 cmp %esi,0x4(%ecx) 935: 74 2a je 961 937: eb cd jmp 906 939: a1 00 00 00 00 mov 0x0,%eax 93e: 8d 6b 14 lea 0x14(%ebx),%ebp 941: 8b 80 54 02 00 00 mov 0x254(%eax),%eax 947: 8b 70 10 mov 0x10(%eax),%esi 94a: 8b 78 14 mov 0x14(%eax),%edi 94d: 89 7b 18 mov %edi,0x18(%ebx) 950: 89 73 14 mov %esi,0x14(%ebx) 953: 89 e8 mov %ebp,%eax 955: e8 fc ff ff ff call 956 95a: 89 e8 mov %ebp,%eax 95c: e8 fc ff ff ff call 95d 961: 8b 43 14 mov 0x14(%ebx),%eax 964: 8b 53 18 mov 0x18(%ebx),%edx 967: 89 03 mov %eax,(%ebx) 969: 89 53 04 mov %edx,0x4(%ebx) 96c: e9 0c 01 00 00 jmp a7d 971: 83 f8 9c cmp $0xffffff9c,%eax 974: 75 6a jne 9e0 976: a1 00 00 00 00 mov 0x0,%eax 97b: 83 e7 40 and $0x40,%edi 97e: 74 43 je 9c3 980: 8b b0 54 02 00 00 mov 0x254(%eax),%esi 986: b8 00 00 00 00 mov $0x0,%eax 98b: e8 fc ff ff ff call 98c 990: 8b 4e 04 mov 0x4(%esi),%ecx 993: f6 c1 01 test $0x1,%cl 996: 74 04 je 99c 998: f3 90 pause 99a: eb f4 jmp 990 99c: 8b 56 1c mov 0x1c(%esi),%edx 99f: 8b 46 18 mov 0x18(%esi),%eax 9a2: 89 53 04 mov %edx,0x4(%ebx) 9a5: 89 03 mov %eax,(%ebx) 9a7: 8b 53 04 mov 0x4(%ebx),%edx 9aa: 8b 42 04 mov 0x4(%edx),%eax 9ad: a8 01 test $0x1,%al 9af: 74 04 je 9b5 9b1: f3 90 pause 9b3: eb f5 jmp 9aa 9b5: 89 43 24 mov %eax,0x24(%ebx) 9b8: 39 4e 04 cmp %ecx,0x4(%esi) 9bb: 0f 84 bc 00 00 00 je a7d 9c1: eb cd jmp 990 9c3: 8b 80 54 02 00 00 mov 0x254(%eax),%eax 9c9: 8b 50 1c mov 0x1c(%eax),%edx 9cc: 8b 40 18 mov 0x18(%eax),%eax 9cf: 89 03 mov %eax,(%ebx) 9d1: 89 53 04 mov %edx,0x4(%ebx) 9d4: 89 d8 mov %ebx,%eax 9d6: e8 fc ff ff ff call 9d7 9db: e9 87 00 00 00 jmp a67 9e0: 8d 54 24 08 lea 0x8(%esp),%edx 9e4: e8 fc ff ff ff call 9e5 9e9: 8b 54 24 08 mov 0x8(%esp),%edx 9ed: 89 c6 mov %eax,%esi 9ef: 89 14 24 mov %edx,(%esp) 9f2: 85 c0 test %eax,%eax 9f4: 0f 84 90 00 00 00 je a8a 9fa: 8b 40 0c mov 0xc(%eax),%eax 9fd: 80 7d 00 00 cmpb $0x0,0x0(%ebp) a01: 74 2d je a30 a03: 8b 40 20 mov 0x20(%eax),%eax a06: f6 40 02 02 testb $0x2,0x2(%eax) a0a: 75 24 jne a30 a0c: 8b 48 18 mov 0x18(%eax),%ecx a0f: 83 39 00 cmpl $0x0,(%ecx) a12: 0f 84 8f 00 00 00 je aa7 a18: 66 83 48 02 02 orw $0x2,0x2(%eax) a1d: eb 11 jmp a30 a1f: 89 f0 mov %esi,%eax a21: e8 fc ff ff ff call a22 a26: b8 ec ff ff ff mov $0xffffffec,%eax a2b: e9 86 00 00 00 jmp ab6 a30: 8b 46 08 mov 0x8(%esi),%eax a33: 8b 56 0c mov 0xc(%esi),%edx a36: 89 53 04 mov %edx,0x4(%ebx) a39: 89 03 mov %eax,(%ebx) a3b: 83 e7 40 and $0x40,%edi a3e: 74 29 je a69 a40: 83 3c 24 00 cmpl $0x0,(%esp) a44: 74 06 je a4c a46: 8b 44 24 24 mov 0x24(%esp),%eax a4a: 89 30 mov %esi,(%eax) a4c: 8b 53 04 mov 0x4(%ebx),%edx a4f: 8b 42 04 mov 0x4(%edx),%eax a52: a8 01 test $0x1,%al a54: 74 04 je a5a a56: f3 90 pause a58: eb f5 jmp a4f a5a: 89 43 24 mov %eax,0x24(%ebx) a5d: b8 00 00 00 00 mov $0x0,%eax a62: e8 fc ff ff ff call a63 a67: eb 14 jmp a7d a69: 89 d8 mov %ebx,%eax a6b: e8 fc ff ff ff call a6c a70: 83 3c 24 00 cmpl $0x0,(%esp) a74: 74 07 je a7d a76: 89 f0 mov %esi,%eax a78: e8 fc ff ff ff call a79 a7d: 8b 43 04 mov 0x4(%ebx),%eax a80: 8b 40 20 mov 0x20(%eax),%eax a83: 89 43 1c mov %eax,0x1c(%ebx) a86: 31 c0 xor %eax,%eax a88: eb 2c jmp ab6 a8a: b8 f7 ff ff ff mov $0xfffffff7,%eax a8f: eb 25 jmp ab6 a91: ba 01 00 00 00 mov $0x1,%edx a96: 89 f0 mov %esi,%eax a98: e8 fc ff ff ff call a99 a9d: 85 c0 test %eax,%eax a9f: 0f 84 f1 fd ff ff je 896 aa5: eb 0f jmp ab6 aa7: 83 3c 24 00 cmpl $0x0,(%esp) aab: 0f 84 75 ff ff ff je a26 ab1: e9 69 ff ff ff jmp a1f ab6: 83 c4 0c add $0xc,%esp ab9: 5b pop %ebx aba: 5e pop %esi abb: 5f pop %edi abc: 5d pop %ebp abd: c3 ret x86-64: 0000000000002406 : 2406: e8 00 00 00 00 callq 240b 240b: 55 push %rbp 240c: 89 d0 mov %edx,%eax 240e: 48 89 e5 mov %rsp,%rbp 2411: 41 57 push %r15 2413: 80 cc 10 or $0x10,%ah 2416: 41 56 push %r14 2418: 49 89 f6 mov %rsi,%r14 241b: 41 55 push %r13 241d: 41 89 d5 mov %edx,%r13d 2420: 41 54 push %r12 2422: 53 push %rbx 2423: 48 89 cb mov %rcx,%rbx 2426: 48 83 ec 28 sub $0x28,%rsp 242a: f6 c6 20 test $0x20,%dh 242d: c7 41 40 01 00 00 00 movl $0x1,0x40(%rcx) 2434: 89 41 38 mov %eax,0x38(%rcx) 2437: c7 41 44 00 00 00 00 movl $0x0,0x44(%rcx) 243e: 0f 84 9b 00 00 00 je 24df 2444: 48 8b 41 28 mov 0x28(%rcx),%rax 2448: 80 3e 00 cmpb $0x0,(%rsi) 244b: 4c 8b 60 30 mov 0x30(%rax),%r12 244f: 74 40 je 2491 2451: 41 f6 44 24 02 02 testb $0x2,0x2(%r12) 2457: 0f 85 e4 02 00 00 jne 2741 245d: 49 8b 44 24 20 mov 0x20(%r12),%rax 2462: 48 83 38 00 cmpq $0x0,(%rax) 2466: 75 05 jne 246d 2468: e9 5a 02 00 00 jmpq 26c7 246d: 4d 8d b4 24 88 00 00 lea 0x88(%r12),%r14 2474: 00 2475: 4c 89 f7 mov %r14,%rdi 2478: e8 00 00 00 00 callq 247d 247d: 4c 89 f7 mov %r14,%rdi 2480: 66 41 83 4c 24 02 02 orw $0x2,0x2(%r12) 2487: e8 00 00 00 00 callq 248c 248c: e9 b0 02 00 00 jmpq 2741 2491: 48 8b 43 20 mov 0x20(%rbx),%rax 2495: 41 80 e5 40 and $0x40,%r13b 2499: 4c 89 63 30 mov %r12,0x30(%rbx) 249d: 48 89 03 mov %rax,(%rbx) 24a0: 48 8b 43 28 mov 0x28(%rbx),%rax 24a4: 48 89 43 08 mov %rax,0x8(%rbx) 24a8: 74 28 je 24d2 24aa: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 24b1: e8 00 00 00 00 callq 24b6 24b6: e8 00 00 00 00 callq 24bb 24bb: 48 8b 53 08 mov 0x8(%rbx),%rdx 24bf: 8b 42 04 mov 0x4(%rdx),%eax 24c2: a8 01 test $0x1,%al 24c4: 74 04 je 24ca 24c6: f3 90 pause 24c8: eb f5 jmp 24bf 24ca: 89 43 3c mov %eax,0x3c(%rbx) 24cd: e9 64 02 00 00 jmpq 2736 24d2: 48 89 df mov %rbx,%rdi 24d5: e8 00 00 00 00 callq 24da 24da: e9 57 02 00 00 jmpq 2736 24df: 48 c7 41 20 00 00 00 movq $0x0,0x20(%rcx) 24e6: 00 24e7: 80 3e 2f cmpb $0x2f,(%rsi) 24ea: 0f 85 c3 00 00 00 jne 25b3 24f0: 41 80 e5 40 and $0x40,%r13b 24f4: 74 5e je 2554 24f6: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 24fd: e8 00 00 00 00 callq 2502 2502: e8 00 00 00 00 callq 2507 2507: 48 83 7b 20 00 cmpq $0x0,0x20(%rbx) 250c: 0f 85 8d 00 00 00 jne 259f 2512: 65 48 8b 04 25 00 00 mov %gs:0x0,%rax 2519: 00 00 251b: 48 8b 80 58 05 00 00 mov 0x558(%rax),%rax 2522: 8b 50 08 mov 0x8(%rax),%edx 2525: f6 c2 01 test $0x1,%dl 2528: 74 04 je 252e 252a: f3 90 pause 252c: eb f4 jmp 2522 252e: 48 8b 48 18 mov 0x18(%rax),%rcx 2532: 48 89 4b 20 mov %rcx,0x20(%rbx) 2536: 48 8b 70 20 mov 0x20(%rax),%rsi 253a: 48 89 73 28 mov %rsi,0x28(%rbx) 253e: 8b 4e 04 mov 0x4(%rsi),%ecx 2541: f6 c1 01 test $0x1,%cl 2544: 74 04 je 254a 2546: f3 90 pause 2548: eb f4 jmp 253e 254a: 89 4b 3c mov %ecx,0x3c(%rbx) 254d: 39 50 08 cmp %edx,0x8(%rax) 2550: 74 4d je 259f 2552: eb ce jmp 2522 2554: 65 48 8b 04 25 00 00 mov %gs:0x0,%rax 255b: 00 00 255d: 4c 8b a0 58 05 00 00 mov 0x558(%rax),%r12 2564: 4c 8d 69 20 lea 0x20(%rcx),%r13 2568: 4d 8d 74 24 04 lea 0x4(%r12),%r14 256d: 4c 89 f7 mov %r14,%rdi 2570: e8 00 00 00 00 callq 2575 2575: 49 8b 44 24 18 mov 0x18(%r12),%rax 257a: 4c 89 ef mov %r13,%rdi 257d: 48 89 43 20 mov %rax,0x20(%rbx) 2581: 49 8b 44 24 20 mov 0x20(%r12),%rax 2586: 48 89 43 28 mov %rax,0x28(%rbx) 258a: e8 00 00 00 00 callq 258f 258f: 4c 89 f7 mov %r14,%rdi 2592: e8 00 00 00 00 callq 2597 2597: 4c 89 ef mov %r13,%rdi 259a: e8 00 00 00 00 callq 259f 259f: 48 8b 43 20 mov 0x20(%rbx),%rax 25a3: 48 89 03 mov %rax,(%rbx) 25a6: 48 8b 43 28 mov 0x28(%rbx),%rax 25aa: 48 89 43 08 mov %rax,0x8(%rbx) 25ae: e9 77 01 00 00 jmpq 272a 25b3: 83 ff 9c cmp $0xffffff9c,%edi 25b6: 0f 85 94 00 00 00 jne 2650 25bc: 65 48 8b 04 25 00 00 mov %gs:0x0,%rax 25c3: 00 00 25c5: 41 80 e5 40 and $0x40,%r13b 25c9: 4c 8b a0 58 05 00 00 mov 0x558(%rax),%r12 25d0: 74 4b je 261d 25d2: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 25d9: e8 00 00 00 00 callq 25de 25de: e8 00 00 00 00 callq 25e3 25e3: 41 8b 44 24 08 mov 0x8(%r12),%eax 25e8: a8 01 test $0x1,%al 25ea: 74 04 je 25f0 25ec: f3 90 pause 25ee: eb f3 jmp 25e3 25f0: 49 8b 54 24 28 mov 0x28(%r12),%rdx 25f5: 48 89 13 mov %rdx,(%rbx) 25f8: 49 8b 4c 24 30 mov 0x30(%r12),%rcx 25fd: 48 89 4b 08 mov %rcx,0x8(%rbx) 2601: 8b 51 04 mov 0x4(%rcx),%edx 2604: f6 c2 01 test $0x1,%dl 2607: 74 04 je 260d 2609: f3 90 pause 260b: eb f4 jmp 2601 260d: 89 53 3c mov %edx,0x3c(%rbx) 2610: 41 39 44 24 08 cmp %eax,0x8(%r12) 2615: 0f 84 0f 01 00 00 je 272a 261b: eb c6 jmp 25e3 261d: 4d 8d 6c 24 04 lea 0x4(%r12),%r13 2622: 4c 89 ef mov %r13,%rdi 2625: e8 00 00 00 00 callq 262a 262a: 49 8b 44 24 28 mov 0x28(%r12),%rax 262f: 48 89 df mov %rbx,%rdi 2632: 48 89 03 mov %rax,(%rbx) 2635: 49 8b 44 24 30 mov 0x30(%r12),%rax 263a: 48 89 43 08 mov %rax,0x8(%rbx) 263e: e8 00 00 00 00 callq 2643 2643: 4c 89 ef mov %r13,%rdi 2646: e8 00 00 00 00 callq 264b 264b: e9 da 00 00 00 jmpq 272a 2650: 48 8d 75 cc lea -0x34(%rbp),%rsi 2654: 4c 89 45 b8 mov %r8,-0x48(%rbp) 2658: e8 00 00 00 00 callq 265d 265d: 44 8b 7d cc mov -0x34(%rbp),%r15d 2661: 48 85 c0 test %rax,%rax 2664: 49 89 c4 mov %rax,%r12 2667: 4c 8b 45 b8 mov -0x48(%rbp),%r8 266b: 0f 84 c9 00 00 00 je 273a 2671: 41 80 3e 00 cmpb $0x0,(%r14) 2675: 48 8b 50 18 mov 0x18(%rax),%rdx 2679: 74 56 je 26d1 267b: 4c 8b 72 30 mov 0x30(%rdx),%r14 267f: 41 f6 46 02 02 testb $0x2,0x2(%r14) 2684: 75 4b jne 26d1 2686: 49 8b 56 20 mov 0x20(%r14),%rdx 268a: 48 83 3a 00 cmpq $0x0,(%rdx) 268e: 0f 84 c4 00 00 00 je 2758 2694: 49 8d 96 88 00 00 00 lea 0x88(%r14),%rdx 269b: 48 89 d7 mov %rdx,%rdi 269e: 48 89 55 b0 mov %rdx,-0x50(%rbp) 26a2: e8 00 00 00 00 callq 26a7 26a7: 66 41 83 4e 02 02 orw $0x2,0x2(%r14) 26ad: 48 8b 55 b0 mov -0x50(%rbp),%rdx 26b1: 48 89 d7 mov %rdx,%rdi 26b4: e8 00 00 00 00 callq 26b9 26b9: 4c 8b 45 b8 mov -0x48(%rbp),%r8 26bd: eb 12 jmp 26d1 26bf: 4c 89 e7 mov %r12,%rdi 26c2: e8 00 00 00 00 callq 26c7 26c7: b8 ec ff ff ff mov $0xffffffec,%eax 26cc: e9 95 00 00 00 jmpq 2766 26d1: 49 8b 54 24 10 mov 0x10(%r12),%rdx 26d6: 41 80 e5 40 and $0x40,%r13b 26da: 48 89 13 mov %rdx,(%rbx) 26dd: 49 8b 54 24 18 mov 0x18(%r12),%rdx 26e2: 48 89 53 08 mov %rdx,0x8(%rbx) 26e6: 74 2d je 2715 26e8: 45 85 ff test %r15d,%r15d 26eb: 74 03 je 26f0 26ed: 4d 89 20 mov %r12,(%r8) 26f0: 48 8b 53 08 mov 0x8(%rbx),%rdx 26f4: 8b 42 04 mov 0x4(%rdx),%eax 26f7: a8 01 test $0x1,%al 26f9: 74 04 je 26ff 26fb: f3 90 pause 26fd: eb f5 jmp 26f4 26ff: 89 43 3c mov %eax,0x3c(%rbx) 2702: 48 c7 c7 00 00 00 00 mov $0x0,%rdi 2709: e8 00 00 00 00 callq 270e 270e: e8 00 00 00 00 callq 2713 2713: eb 15 jmp 272a 2715: 48 89 df mov %rbx,%rdi 2718: e8 00 00 00 00 callq 271d 271d: 45 85 ff test %r15d,%r15d 2720: 74 08 je 272a 2722: 4c 89 e7 mov %r12,%rdi 2725: e8 00 00 00 00 callq 272a 272a: 48 8b 43 08 mov 0x8(%rbx),%rax 272e: 48 8b 40 30 mov 0x30(%rax),%rax 2732: 48 89 43 30 mov %rax,0x30(%rbx) 2736: 31 c0 xor %eax,%eax 2738: eb 2c jmp 2766 273a: b8 f7 ff ff ff mov $0xfffffff7,%eax 273f: eb 25 jmp 2766 2741: be 01 00 00 00 mov $0x1,%esi 2746: 4c 89 e7 mov %r12,%rdi 2749: e8 00 00 00 00 callq 274e 274e: 85 c0 test %eax,%eax 2750: 0f 84 3b fd ff ff je 2491 2756: eb 0e jmp 2766 2758: 45 85 ff test %r15d,%r15d 275b: 0f 84 66 ff ff ff je 26c7 2761: e9 59 ff ff ff jmpq 26bf 2766: 48 83 c4 28 add $0x28,%rsp 276a: 5b pop %rbx 276b: 41 5c pop %r12 276d: 41 5d pop %r13 276f: 41 5e pop %r14 2771: 41 5f pop %r15 2773: 5d pop %rbp 2774: c3 retq -- 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/