Received-SPF: pass (google.com: domain of linux-kernel+bounces-170608-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99;
Date: Tue, 7 May 2024 11:17:25 +0800
From: kernel test robot <yujie.liu@intel.com>
To: Aruna Ramakrishna <aruna.ramakrishna@oracle.com>,
	<linux-kernel@vger.kernel.org>
CC: <oe-kbuild-all@lists.linux.dev>, <x86@kernel.org>,
	<dave.hansen@linux.intel.com>, <tglx@linutronix.de>, <mingo@kernel.org>,
	<keith.lucas@oracle.com>, <aruna.ramakrishna@oracle.com>
Subject: Re: [PATCH v3 4/4] selftests/mm: Add new testcases for pkeys
Message-ID: <202404271128.ERrCledH-lkp@intel.com>
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <20240425180542.1042933-5-aruna.ramakrishna@oracle.com>
Precedence: bulk
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?BaqzfdWewIvywUy7M/rheeXuRATmJDo9QA28jjY/AF6mE6Fqp2EFjjkczL+K?=
 =?us-ascii?Q?cCs/fX/ucqmonTmfhOXwgDhPwNY3n7Xd5dyM478j4SfP202IzrumFQBR1V81?=
 =?us-ascii?Q?Axjl6l5+E7QSyv4fWHPXxcrT7UTIzurx4hgIbzcqxBw5Fga6ugVvmbvrIutf?=
 =?us-ascii?Q?fVKaBO0/0Vpk2chogzJg9HAlfrTTwraaAf5LPQRa6g1Woe7VljOFmCrBytu+?=
 =?us-ascii?Q?JJH+zcIW39UL3xmt9W+rulIfE9Hdwq6cSkHhLW/IfnpSnkxwaQMUDD7/DdMU?=
 =?us-ascii?Q?hS7Gd8YzjzNbTwN2G7PGe7qWRNSs12Q/E82EI7SQ630hVBnolvGQhdojAzbF?=
 =?us-ascii?Q?5PZdQKO4yfi0o1TL4yedtkl7/Xi95FyFVwNjbDSDQRBMOEPGZz2J7k4mwmwG?=
 =?us-ascii?Q?R+tYAk3NZxE3gSdX0HBCJY6nl52NaFnp+56oxiYMaXx6aGQB85cKKOtHJS3j?=
 =?us-ascii?Q?4Cfz07H/NDRkL4Otp3mUy+j+cixXHMuFVN0cTAeusu7qSw4CRiVNisnAShQu?=
 =?us-ascii?Q?yaGOYDDBdIB5zCFVABsQ/g88Iuyis/AEOCpr/OHMXPYT47t5yvdbQpAWLtlT?=
 =?us-ascii?Q?ckNad0f/wKIZlFHq0M/DQXv3IgtL0PtEz6r9oiyCprpQFbCLU/O9ab2eBN8G?=
 =?us-ascii?Q?e8IzL+tCefgDqs6mE5oPynHFse4BsWkiW4Dwa6QX8Fb2XJ5WhsC8+GqbFbZm?=
 =?us-ascii?Q?s1Mf2OdD70gRYFR0c/dyHgo/vfS3SP+b8xELEqa2md/oYaOIwUm5G3FGsiui?=
 =?us-ascii?Q?v1mdGe1JekULMFOGuAsP0w86iQbcb1X8H2CZOx2GW421KaMYI9AdTl96OJQN?=
 =?us-ascii?Q?WvExV2CT5aVYr/txdeEnNoPfwUL+qmAMPjTo24Wj/pyuF8ClwieMM1w63cTt?=
 =?us-ascii?Q?18v1y6blbZ2VQ3aZ9tc22WJQkgCCUwerzIqjjCBP+nlHFWwKMIrauq1T/9ou?=
 =?us-ascii?Q?wKbFDqO/mucdNTp7ewOOeQ6yMYTccKeI4JEg4dcj/3B/VgZkrBk1jcku6nyq?=
 =?us-ascii?Q?5EQ8zn6HNN9KFllQU8iPeHiSvtkEbdDDPGoRwUpXqJsWKsP8evhdQC3bqRkt?=
 =?us-ascii?Q?251r2rRlZjgKY7INcJQiwrXOYL71PssZtorWeNXeaMnYFgdwcwWmjbhmteoH?=
 =?us-ascii?Q?hYpeqa3agRc2AW3ZmPL2xlZ9UFHWfTnrP9qIMcBeHsOBg3iiyq0s3VOKAY1K?=
 =?us-ascii?Q?oIZ2xJmq5e14T0/6Br2vuREV5P9FO5DnpoI0CJVl3NaKEIaukTVgr/UdgC8I?=
 =?us-ascii?Q?uTF5k6QB/1E1lFi1b/pJKGe2z5dmrge/rHTzmW8kDVW6UHgtc3hVgqCZOXh9?=
 =?us-ascii?Q?t04+R4YXDuK6LOkpNJ+ihobU0n9rblWQu0OqVk4n/LcxrI0/Hu7Any1iI/QP?=
 =?us-ascii?Q?U1g/NcvXchyZ4UjrcV2nBBVgkmuSo39jYorWbLIYpJXFWWttoDXGqGMlxSCo?=
 =?us-ascii?Q?W07p6vuGkVITrJZw+VjS6jMFDtMVCL9zfyXxD5msNns+uE5pwCJwlMVAnUyi?=
 =?us-ascii?Q?eh1ge3ozWrICFO5c1aUo8AX40+9InK6juRdwUGf9ifreuOtGZee3Isy7z1HV?=
 =?us-ascii?Q?5XRcrSjqYg34ZBiR7KjRAuHaW9NkdeWeAGChsq0g?=
X-MS-Exchange-CrossTenant-Network-Message-Id: 48234166-e651-45b8-2048-08dc6e443a6c
X-MS-Exchange-CrossTenant-AuthSource: SA1PR11MB8393.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 May 2024 03:17:30.1620
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: KznICM80cOVTIn6OyAWKordCOGnr+wqUO14zL3VHEPpB4BFLw2PTtyyNC9XwAE6lo+/04dqE2tdJAv2Erc74Bg==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR11MB6319
X-OriginatorOrg: intel.com

Hi Aruna,

kernel test robot noticed the following build errors:

[auto build test ERROR on tip/x86/core]
[also build test ERROR on akpm-mm/mm-everything tip/master linus/master v6.9-rc5]
[cannot apply to tip/auto-latest next-20240426]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Aruna-Ramakrishna/x86-pkeys-Signal-handling-function-interface-changes-to-accept-PKRU-as-a-parameter/20240426-020800
base:   tip/x86/core
patch link:    https://lore.kernel.org/r/20240425180542.1042933-5-aruna.ramakrishna%40oracle.com
patch subject: [PATCH v3 4/4] selftests/mm: Add new testcases for pkeys

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <yujie.liu@intel.com>
| Closes: https://lore.kernel.org/r/202404271128.ERrCledH-lkp@intel.com/

All errors:

linux/tools/testing/selftests/mm$ make
..
gcc -Wall -I /root/linux/tools/testing/selftests/../../..  -isystem /root/linux/tools/testing/selftests/../../../usr/include -no-pie  -m32 -mxsave  pkey_sighandler_tests.c vm_util.c thp_settings.c -lrt -lpthread -lm -lrt -ldl -lm -o /root/linux/tools/testing/selftests/mm/pkey_sighandler_tests_32
pkey_sighandler_tests.c: In function 'sigsegv_handler':
pkey_sighandler_tests.c:38:23: error: the register specified for 'r10' cannot be accessed by the current target
   38 |         register long r10 asm("r10") = a4;
      |                       ^~~
pkey_sighandler_tests.c:39:23: error: the register specified for 'r8' cannot be accessed by the current target
   39 |         register long r8 asm("r8") = a5;
      |                       ^~
pkey_sighandler_tests.c:40:23: error: the register specified for 'r9' cannot be accessed by the current target
   40 |         register long r9 asm("r9") = a6;
      |                       ^~
In function 'syscall_raw',
    inlined from 'sigsegv_handler' at pkey_sighandler_tests.c:58:2:
pkey_sighandler_tests.c:41:9: error: the register 'r11' cannot be clobbered in 'asm' for the current target
   41 |         asm volatile ("syscall"
      |         ^~~
pkey_sighandler_tests.c: In function 'thread_segv_maperr_ptr':
pkey_sighandler_tests.c:38:23: error: the register specified for 'r10' cannot be accessed by the current target
   38 |         register long r10 asm("r10") = a4;
      |                       ^~~
pkey_sighandler_tests.c:39:23: error: the register specified for 'r8' cannot be accessed by the current target
   39 |         register long r8 asm("r8") = a5;
      |                       ^~
pkey_sighandler_tests.c:40:23: error: the register specified for 'r9' cannot be accessed by the current target
   40 |         register long r9 asm("r9") = a6;
      |                       ^~
pkey_sighandler_tests.c:38:23: error: the register specified for 'r10' cannot be accessed by the current target
   38 |         register long r10 asm("r10") = a4;
      |                       ^~~
pkey_sighandler_tests.c:39:23: error: the register specified for 'r8' cannot be accessed by the current target
   39 |         register long r8 asm("r8") = a5;
      |                       ^~
pkey_sighandler_tests.c:40:23: error: the register specified for 'r9' cannot be accessed by the current target
   40 |         register long r9 asm("r9") = a6;
      |                       ^~
In function 'syscall_raw',
    inlined from 'thread_segv_maperr_ptr' at pkey_sighandler_tests.c:100:9:
pkey_sighandler_tests.c:41:9: error: the register 'r11' cannot be clobbered in 'asm' for the current target
   41 |         asm volatile ("syscall"
      |         ^~~
In function 'syscall_raw',
    inlined from 'thread_segv_maperr_ptr' at pkey_sighandler_tests.c:107:2:
pkey_sighandler_tests.c:41:9: error: the register 'r11' cannot be clobbered in 'asm' for the current target
   41 |         asm volatile ("syscall"
      |         ^~~
pkey_sighandler_tests.c: In function 'test_sigsegv_handler_with_different_pkey_for_stack':
pkey_sighandler_tests.c:38:23: error: the register specified for 'r10' cannot be accessed by the current target
   38 |         register long r10 asm("r10") = a4;
      |                       ^~~
pkey_sighandler_tests.c:39:23: error: the register specified for 'r8' cannot be accessed by the current target
   39 |         register long r8 asm("r8") = a5;
      |                       ^~
pkey_sighandler_tests.c:40:23: error: the register specified for 'r9' cannot be accessed by the current target
   40 |         register long r9 asm("r9") = a6;
      |                       ^~
pkey_sighandler_tests.c:38:23: error: the register specified for 'r10' cannot be accessed by the current target
   38 |         register long r10 asm("r10") = a4;
      |                       ^~~
pkey_sighandler_tests.c:39:23: error: the register specified for 'r8' cannot be accessed by the current target
   39 |         register long r8 asm("r8") = a5;
      |                       ^~
pkey_sighandler_tests.c:40:23: error: the register specified for 'r9' cannot be accessed by the current target
   40 |         register long r9 asm("r9") = a6;
      |                       ^~
In function 'syscall_raw',
    inlined from 'test_sigsegv_handler_with_different_pkey_for_stack' at pkey_sighandler_tests.c:233:13:
pkey_sighandler_tests.c:41:9: error: the register 'r11' cannot be clobbered in 'asm' for the current target
   41 |         asm volatile ("syscall"
      |         ^~~
In function 'syscall_raw',
    inlined from 'test_sigsegv_handler_with_different_pkey_for_stack' at pkey_sighandler_tests.c:247:3:
pkey_sighandler_tests.c:41:9: error: the register 'r11' cannot be clobbered in 'asm' for the current target
   41 |         asm volatile ("syscall"
      |         ^~~
make: *** [Makefile:146: /root/linux/tools/testing/selftests/mm/pkey_sighandler_tests_32] Error 1


linux/tools/testing/selftests/mm$ make LLVM=1
..
clang --target=x86_64-linux-gnu -fintegrated-as -Wall -I /root/linux/tools/testing/selftests/../../..  -isystem /root/linux/tools/testing/selftests/../../../usr/include -no-pie  -m32 -mxsave  pkey_sighandler_tests.c vm_util.c thp_settings.c -lrt -lpthread -lm -lrt -ldl -lm -o /root/linux/tools/testing/selftests/mm/pkey_sighandler_tests_32
pkey_sighandler_tests.c:41:16: error: couldn't allocate input reg for constraint '{r10}'
   41 |         asm volatile ("syscall"
      |                       ^
pkey_sighandler_tests.c:41:16: error: couldn't allocate input reg for constraint '{r10}'
pkey_sighandler_tests.c:41:16: error: couldn't allocate input reg for constraint '{r10}'
pkey_sighandler_tests.c:41:16: error: couldn't allocate input reg for constraint '{r10}'
pkey_sighandler_tests.c:41:16: error: couldn't allocate input reg for constraint '{r10}'
5 errors generated.
make: *** [Makefile:146: /root/linux/tools/testing/selftests/mm/pkey_sighandler_tests_32] Error 1


vim +41 tools/testing/selftests/mm/pkey_sighandler_tests.c

6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  33  
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  34  static inline __attribute__((always_inline)) long
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  35  syscall_raw(long n, long a1, long a2, long a3, long a4, long a5, long a6)
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  36  {
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  37  	unsigned long ret;
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  38  	register long r10 asm("r10") = a4;
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  39  	register long r8 asm("r8") = a5;
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  40  	register long r9 asm("r9") = a6;
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25 @41  	asm volatile ("syscall"
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  42  		      : "=a"(ret)
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  43  		      : "a"(n), "D"(a1), "S"(a2), "d"(a3), "r"(r10), "r"(r8), "r"(r9)
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  44  		      : "rcx", "r11", "memory");
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  45  	return ret;
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  46  }
6b81215d7e8a34 Aruna Ramakrishna 2024-04-25  47  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki