tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.12.08a head: c5c1f436c5434ca260106aa0713ec8e4de3cba22 commit: f1bf0344f92961c0691b3baeaa1c2f23bb076bc8 [96/97] mm: Add kmalloc_debug_print_provenance() to print source of memory block config: i386-randconfig-s002-20201208 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-179-ga00755aa-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=f1bf0344f92961c0691b3baeaa1c2f23bb076bc8 git remote add rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git git fetch --no-tags rcu dev.2020.12.08a git checkout f1bf0344f92961c0691b3baeaa1c2f23bb076bc8 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All errors (new ones prefixed by >>): ld: mm/slab_common.o: in function `kmalloc_debug_print_provenance': >> mm/slab_common.c:583: undefined reference to `kmem_struct_debug_provenance' vim +583 mm/slab_common.c 557 558 /** 559 * kmalloc_debug_print_provenance - Print available provenance information 560 * @object: object for which to find provenance information. 561 * 562 * This function uses pr_cont(), so that the caller is expected to have 563 * printed out whatever preamble is appropriate. The provenance information 564 * depends on the type of object and on how much debugging is enabled. 565 * For a slab-cache object, the slab name is printed, and, if available, 566 * the return address and stack trace from the allocation of that object. 567 */ 568 void kmalloc_debug_print_provenance(void *object) 569 { 570 int i; 571 struct page *page; 572 struct kmem_provenance kp; 573 574 if (!virt_addr_valid(object)) { 575 pr_cont(" non-paged (local) memory.\n"); 576 return; 577 } 578 page = virt_to_head_page(object); 579 kp.kp_ptr = object; 580 kp.kp_page = page; 581 kp.kp_nstack = KS_ADDRS_COUNT; 582 if (PageSlab(page)) { > 583 kmem_struct_debug_provenance(&kp); 584 if (page->slab_cache) 585 pr_cont(" slab %s", page->slab_cache->name); 586 if (kp.kp_ret) 587 pr_cont(" allocated at %pS\n", kp.kp_ret); 588 if (kp.kp_stack[0]) { 589 for (i = 0; i < ARRAY_SIZE(kp.kp_stack); i++) { 590 if (!kp.kp_stack[i]) 591 break; 592 pr_info(" %pS\n", kp.kp_stack[i]); 593 } 594 } 595 return; 596 } 597 pr_cont(" non-slab memory.\n"); 598 } 599 EXPORT_SYMBOL_GPL(kmalloc_debug_print_provenance); 600 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
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