[缺陷描述]： ltp net.nfs 下 nfs09_v30_ip4t、nfs09_v30_ip6t 用例执行fail，TFAIL: Wrong file contents, expected 'File truncated', got 'File truncated not' x86_64、aarch64 架构上都存在该问题 [重现概率]： 必现 [重现环境]： 环境信息：云上ecs OS： # cat /etc/os-release NAME="Anolis OS" VERSION="23" ID="anolis" VERSION_ID="23" PLATFORM_ID="platform:an23" PRETTY_NAME="Anolis OS 23" ANSI_COLOR="0;31" HOME_URL="https://openanolis.cn/" BUG_REPORT_URL="https://bugzilla.openanolis.cn/" KERNEL: #uname -r 6.6.25-2_rc1.an23.x86_64 MEMORY: # free -h total used free shared buff/cache available Mem: 15Gi 570Mi 13Gi 15Mi 812Mi 14Gi Swap: 0B 0B 0B CPU:# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 52 bits physical, 57 bits virtual Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Vendor ID: GenuineIntel BIOS Vendor ID: Alibaba Cloud Model name: Intel(R) Xeon(R) Platinum 8475B BIOS Model name: pc-q35-df-2.1 CPU @ 0.0GHz BIOS CPU family: 1 CPU family: 6 Model: 143 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 Stepping: 8 CPU(s) scaling MHz: 84% CPU max MHz: 3800.0000 CPU min MHz: 800.0000 BogoMIPS: 5400.00 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc cpuid aperfmperf t sc_known_freq pni pclmulqdq monitor ssse3 fma cx16 pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt aes x save avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch cpuid_fault ibrs_enhanced fsgsbase tsc_adj ust bmi1 hle avx2 smep bmi2 erms invpcid rtm avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves avx_vnni avx512_bf16 wbnoinvd ida arat hwp hwp_notify hwp_act_window hwp_epp hwp_pkg_req avx512vbmi umip pku ospke waitpkg avx512_ vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid bus_lock_detect cldemote movdiri movdir64b enqcmd fsrm md_clear serialize tsxldtrk amx_bf16 avx512_fp16 amx_tile amx_int8 ar ch_capabilities Virtualization features: Hypervisor vendor: KVM Virtualization type: full Caches (sum of all): L1d: 96 KiB (2 instances) L1i: 64 KiB (2 instances) L2: 4 MiB (2 instances) L3: 97.5 MiB (1 instance) NUMA: NUMA node(s): 1 NUMA node0 CPU(s): 0-3 Vulnerabilities: Gather data sampling: Not affected Itlb multihit: Not affected L1tf: Not affected Mds: Not affected Meltdown: Not affected Mmio stale data: Unknown: No mitigations Reg file data sampling: Not affected Retbleed: Not affected Spec rstack overflow: Not affected Spec store bypass: Vulnerable Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Spectre v2: Mitigation; Enhanced / Automatic IBRS, RSB filling, PBRSB-eIBRS SW sequence Srbds: Not affected Tsx async abort: Not affected [重现步骤]： # 下载并编译测试套 git clone https://gitee.com/anolis/ltp.git --branch 6.6 cd ltp make autotools ./configure make make install # 执行测试 /opt/ltp/runltp -f net.nfs -s nfs09_v30_ip4t /opt/ltp/runltp -f net.nfs -s nfs09_v30_ip6t [期望结果]： 用例执行PASS [实际结果]： 用例执行FAIL,日志如下： <<<test_start>>> tag=nfs09_v30_ip4t stime=1713531383 cmdline="nfs09.sh -v 3 -t tcp" contacts="" analysis=exit <<<test_output>>> nfs09 1 TINFO: Running: nfs09.sh -v 3 -t tcp nfs09 1 TINFO: initialize 'lhost' 'ltp_ns_veth2' interface nfs09 1 TINFO: add local addr 10.0.0.2/24 nfs09 1 TINFO: add local addr fd00:1:1:1::2/64 nfs09 1 TINFO: initialize 'rhost' 'ltp_ns_veth1' interface nfs09 1 TINFO: add remote addr 10.0.0.1/24 nfs09 1 TINFO: add remote addr fd00:1:1:1::1/64 nfs09 1 TINFO: Network config (local -- remote): nfs09 1 TINFO: ltp_ns_veth2 -- ltp_ns_veth1 nfs09 1 TINFO: 10.0.0.2/24 -- 10.0.0.1/24 nfs09 1 TINFO: fd00:1:1:1::2/64 -- fd00:1:1:1::1/64 tst_device.c:96: TINFO: Found free device 2 '/dev/loop2' tst_supported_fs_types.c:169: TINFO: Skipping ext2 as requested by the test tst_supported_fs_types.c:169: TINFO: Skipping ext3 as requested by the test tst_supported_fs_types.c:97: TINFO: Kernel supports ext4 tst_supported_fs_types.c:62: TINFO: mkfs.ext4 does exist tst_supported_fs_types.c:97: TINFO: Kernel supports xfs tst_supported_fs_types.c:62: TINFO: mkfs.xfs does exist tst_supported_fs_types.c:97: TINFO: Kernel supports btrfs tst_supported_fs_types.c:58: TINFO: mkfs.btrfs does not exist tst_supported_fs_types.c:105: TINFO: Skipping bcachefs because of FUSE blacklist tst_supported_fs_types.c:169: TINFO: Skipping vfat as requested by the test tst_supported_fs_types.c:169: TINFO: Skipping exfat as requested by the test tst_supported_fs_types.c:169: TINFO: Skipping ntfs as requested by the test tst_supported_fs_types.c:169: TINFO: Skipping tmpfs as requested by the test nfs09 1 TINFO: === Testing on ext4 === nfs09 1 TINFO: Formatting ext4 with opts='/dev/loop2' nfs09 1 TINFO: Mounting device: mount -t ext4 /dev/loop2 /tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/mntpoint nfs09 1 TINFO: timeout per run is 0h 15m 0s nfs09 1 TINFO: mount.nfs: (linux nfs-utils 2.6.2) nfs09 1 TINFO: setup NFSv3, socket type tcp nfs09 1 TINFO: Mounting /tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/3/0 nfs09 1 TINFO: Mounting NFS: mount -v -t nfs -o proto=tcp,vers=3 10.0.0.2:/tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/mntpoint/3/tcp /tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/3/0 nfs09 1 TPASS: ls -l 'testfile' failed as expected nfs09 1 TFAIL: Wrong file contents, expected 'File truncated', got 'File truncated not' nfs09 2 TINFO: Cleaning up testcase nfs09 2 TINFO: Unmounting /tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/3/0 nfs09 2 TINFO: === Testing on xfs === nfs09 2 TINFO: Formatting xfs with opts='/dev/loop2' nfs09 2 TINFO: Mounting device: mount -t xfs /dev/loop2 /tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/mntpoint nfs09 2 TINFO: timeout per run is 0h 15m 0s nfs09 2 TINFO: mount.nfs: (linux nfs-utils 2.6.2) nfs09 2 TINFO: setup NFSv3, socket type tcp nfs09 2 TINFO: Mounting /tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/3/0 nfs09 2 TINFO: Mounting NFS: mount -v -t nfs -o proto=tcp,vers=3 10.0.0.2:/tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/mntpoint/3/tcp /tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/3/0 nfs09 2 TPASS: ls -l 'testfile' failed as expected nfs09 2 TFAIL: Wrong file contents, expected 'File truncated', got 'File truncated not' nfs09 3 TINFO: Cleaning up testcase nfs09 3 TINFO: Unmounting /tmp/ltp-BWPa0tVUau/LTP_nfs09.y3x4YFgxOu/3/0 Summary: passed 2 failed 2 broken 0 skipped 0 warnings 0 <<<test_start>>> tag=nfs09_v30_ip6t stime=1713531438 cmdline="nfs09.sh -6 -v 3 -t tcp" contacts="" analysis=exit <<<test_output>>> nfs09 1 TINFO: Running: nfs09.sh -6 -v 3 -t tcp nfs09 1 TINFO: initialize 'lhost' 'ltp_ns_veth2' interface nfs09 1 TINFO: add local addr 10.0.0.2/24 nfs09 1 TINFO: add local addr fd00:1:1:1::2/64 nfs09 1 TINFO: initialize 'rhost' 'ltp_ns_veth1' interface nfs09 1 TINFO: add remote addr 10.0.0.1/24 nfs09 1 TINFO: add remote addr fd00:1:1:1::1/64 nfs09 1 TINFO: Network config (local -- remote): nfs09 1 TINFO: ltp_ns_veth2 -- ltp_ns_veth1 nfs09 1 TINFO: 10.0.0.2/24 -- 10.0.0.1/24 nfs09 1 TINFO: fd00:1:1:1::2/64 -- fd00:1:1:1::1/64 tst_device.c:96: TINFO: Found free device 2 '/dev/loop2' tst_supported_fs_types.c:169: TINFO: Skipping ext2 as requested by the test tst_supported_fs_types.c:169: TINFO: Skipping ext3 as requested by the test tst_supported_fs_types.c:97: TINFO: Kernel supports ext4 tst_supported_fs_types.c:62: TINFO: mkfs.ext4 does exist tst_supported_fs_types.c:97: TINFO: Kernel supports xfs tst_supported_fs_types.c:62: TINFO: mkfs.xfs does exist tst_supported_fs_types.c:97: TINFO: Kernel supports btrfs tst_supported_fs_types.c:58: TINFO: mkfs.btrfs does not exist tst_supported_fs_types.c:105: TINFO: Skipping bcachefs because of FUSE blacklist tst_supported_fs_types.c:169: TINFO: Skipping vfat as requested by the test tst_supported_fs_types.c:169: TINFO: Skipping exfat as requested by the test tst_supported_fs_types.c:169: TINFO: Skipping ntfs as requested by the test tst_supported_fs_types.c:169: TINFO: Skipping tmpfs as requested by the test nfs09 1 TINFO: === Testing on ext4 === nfs09 1 TINFO: Formatting ext4 with opts='/dev/loop2' nfs09 1 TINFO: Mounting device: mount -t ext4 /dev/loop2 /tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/mntpoint nfs09 1 TINFO: timeout per run is 0h 15m 0s nfs09 1 TINFO: mount.nfs: (linux nfs-utils 2.6.2) nfs09 1 TINFO: setup NFSv3, socket type tcp6 nfs09 1 TINFO: Mounting /tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/3/0 nfs09 1 TINFO: Mounting NFS: mount -v -t nfs -o proto=tcp6,vers=3 [fd00:1:1:1::2]:/tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/mntpoint/3/tcp6 /tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/3/0 nfs09 1 TPASS: ls -l 'testfile' failed as expected nfs09 1 TFAIL: Wrong file contents, expected 'File truncated', got 'File truncated not' nfs09 2 TINFO: Cleaning up testcase nfs09 2 TINFO: Unmounting /tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/3/0 nfs09 2 TINFO: === Testing on xfs === nfs09 2 TINFO: Formatting xfs with opts='/dev/loop2' nfs09 2 TINFO: Mounting device: mount -t xfs /dev/loop2 /tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/mntpoint nfs09 2 TINFO: timeout per run is 0h 15m 0s nfs09 2 TINFO: mount.nfs: (linux nfs-utils 2.6.2) nfs09 2 TINFO: setup NFSv3, socket type tcp6 nfs09 2 TINFO: Mounting /tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/3/0 nfs09 2 TINFO: Mounting NFS: mount -v -t nfs -o proto=tcp6,vers=3 [fd00:1:1:1::2]:/tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/mntpoint/3/tcp6 /tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/3/0 nfs09 2 TPASS: ls -l 'testfile' failed as expected nfs09 2 TFAIL: Wrong file contents, expected 'File truncated', got 'File truncated not' nfs09 3 TINFO: Cleaning up testcase nfs09 3 TINFO: Unmounting /tmp/ltp-BWPa0tVUau/LTP_nfs09.F7788azBuD/3/0 Summary: passed 2 failed 2 broken 0 skipped 0 warnings 0 [原因分析]： 文件传输后，内容缩减(truncate)失败，预期内容只剩 "File truncated"，实际文件内容为 "File truncated not"
该用例检查 NFS 客户端缓存是否会阻止文件截断，主要执行以下操作： 1. 在远端创建该文件（绕过 NFS），写入内容 "File rewritten not" 2. 通过 NFS 试图以更短的数据覆盖该文件内容为 "File truncated"。 3. 再次在远端读取文件内容并检查是否与 "File truncated" 匹配,最终的内容是 "File truncated not"。看起来在脚本尝试截断文件时失败了，文件之前的内容没有被完全覆盖。 测试脚本具体位置：testcases/network/nfs/nfs_stress/nfs09.sh，请开发同学判断一下该问题是否符合预期
这个问题在 001 上有吗？@Janos
(In reply to dust.li from comment #2) > 这个问题在 001 上有吗？@Janos 6.6 kernel 这次应该是首次进行 ltp功能测试，之前的版本都没测试过
这个和NFSv3在netns间的锁机制有关，我注意到社区也没有处理这个问题。和上一个nfs的问题类似。NFSv4下没有这个问题可以忽略。
研发分析确认暂不关注，测试建立对应基线。