linux-kernel - [linus:master] [kmemleak] 39042079a0: kernel-selftests.kvm.memslot_perf

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Date: Thu, 25 Jan 2024 15:34:37 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Catalin Marinas <catalin.marinas@....com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>, Waiman Long <longman@...hat.com>,
	<linux-mm@...ck.org>, <oliver.sang@...el.com>
Subject: [linus:master] [kmemleak]  39042079a0:
 kernel-selftests.kvm.memslot_perf_test.fail



Hello,

kernel test robot noticed "kernel-selftests.kvm.memslot_perf_test.fail" on:

commit: 39042079a0c241d09fa6fc3bb67c2ddf60011d0f ("kmemleak: avoid RCU stalls when freeing metadata for per-CPU pointers")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linus/master 9d64bf433c53cab2f48a3fff7a1f2a696bc5229a]
[test failed on linux-next/master ad5c60d66016e544c51ed98635a74073f761f45d]

in testcase: kernel-selftests
version: kernel-selftests-x86_64-60acb023-1_20230329
with following parameters:

	group: kvm



compiler: gcc-12
test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480+ (Sapphire Rapids) with 256G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)



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 <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202401251429.d3dea02b-oliver.sang@intel.com



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240125/202401251429.d3dea02b-oliver.sang@intel.com


# timeout set to 120
# selftests: kvm: memslot_perf_test
# Testing map performance with 1 runs, 5 seconds each
# Memslot count too high for this test, decrease the cap (max is 8209)
# 
# Testing unmap performance with 1 runs, 5 seconds each
# Test took 9.178259867s for slot setup + 5.035747214s all iterations
# Done 85 iterations, avg 0.059244084s each
# Best runtime result was 0.059244084s per iteration (with 85 iterations)
# 
# Testing unmap chunked performance with 1 runs, 5 seconds each
# Test took 9.460993790s for slot setup + 5.001833746s all iterations
# Done 84 iterations, avg 0.059545639s each
# Best runtime result was 0.059545639s per iteration (with 84 iterations)
# 
# Testing move active area performance with 1 runs, 5 seconds each
# Test took 9.235748282s for slot setup + 5.001305107s all iterations
# Done 4807 iterations, avg 0.001040421s each
# Best runtime result was 0.001040421s per iteration (with 4807 iterations)
# 
# Testing move inactive area performance with 1 runs, 5 seconds each
# Test took 9.113425177s for slot setup + 5.001150112s all iterations
# Done 4534 iterations, avg 0.001103032s each
# Best runtime result was 0.001103032s per iteration (with 4534 iterations)
# 
# Testing RW performance with 1 runs, 5 seconds each
#
not ok 71 selftests: kvm: memslot_perf_test # TIMEOUT 120 seconds


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