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X-CSE-ConnectionGUID: 4vtcSXx3QDaLijFwAVsiRQ== X-CSE-MsgGUID: kUIcatmLQnyCUKdGIGpfjQ== X-IronPort-AV: E=McAfee;i="6800,10657,11759"; a="76224287" X-IronPort-AV: E=Sophos;i="6.23,179,1770624000"; d="scan'208";a="76224287" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Apr 2026 20:18:29 -0700 X-CSE-ConnectionGUID: hRHIx42nTce3zJplxlFpbg== X-CSE-MsgGUID: 36SwFOnOTKqLOuqoFusQfQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,179,1770624000"; d="scan'208";a="223780958" Received: from lkp-server01.sh.intel.com (HELO 7f3b36e5d6a5) ([10.239.97.150]) by fmviesa009.fm.intel.com with ESMTP; 14 Apr 2026 20:18:26 -0700 Received: from kbuild by 7f3b36e5d6a5 with local (Exim 4.98.2) (envelope-from ) id 1wCqlj-0000000005h-0rLu; Wed, 15 Apr 2026 03:18:23 +0000 Date: Wed, 15 Apr 2026 11:17:53 +0800 From: kernel test robot To: Youling Tang , Andrew Morton , Baoquan He , Jonathan Corbet Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , Vivek Goyal , Dave Young , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, youling.tang@linux.dev, Youling Tang Subject: Re: [PATCH] crash: Support high memory reservation for range syntax Message-ID: <202604151100.7wbci6vo-lkp@intel.com> References: <20260404074103.506793-1-youling.tang@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260404074103.506793-1-youling.tang@linux.dev> X-Rspam-User: X-Rspamd-Queue-Id: A69CC80008 X-Stat-Signature: nssyji7uy8tmsjwxph1irgrahm77cjd1 X-Rspamd-Server: rspam06 X-HE-Tag: 1776223110-396165 X-HE-Meta: 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 z5NYLgXl teQHK+LmLMNCTgknMc1leKrUp5/8W9Mmlyj8bID7qyUkplNEPQAK59i3fVRQUEHULL0+XPuUf7OaWDSwVqyr0UD0WnhPjDgPNikPPIgoq9u9P6CecQ1Li/SuGHVtPNH8omhSkHPIqZYyMrF34wUBOeLfDWEJiyw+9Sjbew4aFjhh4EooH3dhSUHnqSHS6tUZfTBH2SsFyX3wAl9/EheBlnEI/hWi1vX8xZ9nxuHfBd1wm5aHUdIN8VTlmxAL7W7jvDK4WlJeJpJxztJhpvGsUl8numwDSZ11wuFVxdnLrZyYWQpPfxikzIgu4d4MWIx199voEXN8J1jzK+GwCzHpGh6mEOtx7Ycp5vA0H Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Youling, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v7.0 next-20260414] [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/Youling-Tang/crash-Support-high-memory-reservation-for-range-syntax/20260414-205035 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20260404074103.506793-1-youling.tang%40linux.dev patch subject: [PATCH] crash: Support high memory reservation for range syntax config: mips-randconfig-r061-20260415 (https://download.01.org/0day-ci/archive/20260415/202604151100.7wbci6vo-lkp@intel.com/config) compiler: mips64-linux-gcc (GCC) 12.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260415/202604151100.7wbci6vo-lkp@intel.com/reproduce) 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 | Closes: https://lore.kernel.org/oe-kbuild-all/202604151100.7wbci6vo-lkp@intel.com/ All errors (new ones prefixed by >>): kernel/crash_reserve.c: In function '__parse_crashkernel': >> kernel/crash_reserve.c:324:37: error: 'DEFAULT_CRASH_KERNEL_LOW_SIZE' undeclared (first use in this function) 324 | *low_size = DEFAULT_CRASH_KERNEL_LOW_SIZE; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/crash_reserve.c:324:37: note: each undeclared identifier is reported only once for each function it appears in vim +/DEFAULT_CRASH_KERNEL_LOW_SIZE +324 kernel/crash_reserve.c 282 283 static int __init __parse_crashkernel(char *cmdline, 284 unsigned long long system_ram, 285 unsigned long long *crash_size, 286 unsigned long long *crash_base, 287 const char *suffix, 288 bool *high, 289 unsigned long long *low_size) 290 { 291 char *first_colon, *first_space; 292 char *ck_cmdline; 293 char *name = "crashkernel="; 294 unsigned long long boundary = 0; 295 int ret; 296 297 BUG_ON(!crash_size || !crash_base); 298 *crash_size = 0; 299 *crash_base = 0; 300 301 ck_cmdline = get_last_crashkernel(cmdline, name, suffix); 302 if (!ck_cmdline) 303 return -ENOENT; 304 305 ck_cmdline += strlen(name); 306 307 if (suffix) 308 return parse_crashkernel_suffix(ck_cmdline, crash_size, 309 suffix); 310 /* 311 * if the commandline contains a ':', then that's the extended 312 * syntax -- if not, it must be the classic syntax 313 */ 314 first_colon = strchr(ck_cmdline, ':'); 315 first_space = strchr(ck_cmdline, ' '); 316 if (first_colon && (!first_space || first_colon < first_space)) { 317 ret = parse_crashkernel_mem(ck_cmdline, system_ram, 318 crash_size, crash_base); 319 320 /* Handle optional ',>boundary' condition for range ':' syntax only. */ 321 parse_crashkernel_boundary(ck_cmdline, &boundary); 322 if (!ret && *crash_size > boundary) { 323 *high = true; > 324 *low_size = DEFAULT_CRASH_KERNEL_LOW_SIZE; 325 } 326 327 return ret; 328 } 329 330 return parse_crashkernel_simple(ck_cmdline, crash_size, crash_base); 331 } 332 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki