************************ crashinfo ************************* /exports/testreports/51291/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg227-client-timeout-core (3.10.0-7.9-debug) +==========================+ | *** Crashinfo v1.3.7 *** | +==========================+ +++WARNING+++ PARTIAL DUMP with size(vmcore) < 25% size(RAM) KERNEL: /tmp/crash-anaysis.MrPSk/vmlinux [TAINTED] DUMPFILE: /exports/testreports/51291/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg227-client-timeout-core [PARTIAL DUMP] CPUS: 4 DATE: Thu May 1 16:15:07 EDT 2025 UPTIME: 00:33:40 LOAD AVERAGE: 14.00, 16.06, 37.47 TASKS: 177 NODENAME: oleg227-client.virtnet RELEASE: 3.10.0-7.9-debug VERSION: #1 SMP Sat Mar 26 23:28:42 EDT 2022 MACHINE: x86_64 (2399 Mhz) MEMORY: 4 GB PANIC: "" +--------------------------+ >------------------------| Per-cpu Stacks ('bt -a') |------------------------< +--------------------------+ -- CPU#0 -- PID=0 CPU=0 CMD=swapper/0 #-1 native_safe_halt+0xb, 449 bytes of data #0 default_idle+0x1e #1 default_enter_idle+0x45 #2 cpuidle_enter_state+0x40 #3 cpuidle_idle_call+0xd8 #4 arch_cpu_idle+0xe #5 cpu_startup_entry+0x14a #6 rest_init+0x8e #7 start_kernel+0x456 #8 x86_64_start_reservations+0x2a #9 x86_64_start_kernel+0x152 #10 start_cpu+0x5 -- CPU#1 -- PID=0 CPU=1 CMD=swapper/1 #-1 native_safe_halt+0xb, 449 bytes of data #0 default_idle+0x1e #1 default_enter_idle+0x45 #2 cpuidle_enter_state+0x40 #3 cpuidle_idle_call+0xd8 #4 arch_cpu_idle+0xe #5 cpu_startup_entry+0x14a #6 start_secondary+0x1eb #7 start_cpu+0x5 -- CPU#2 -- PID=0 CPU=2 CMD=swapper/2 #-1 native_safe_halt+0xb, 449 bytes of data #0 default_idle+0x1e #1 default_enter_idle+0x45 #2 cpuidle_enter_state+0x40 #3 cpuidle_idle_call+0xd8 #4 arch_cpu_idle+0xe #5 cpu_startup_entry+0x14a #6 start_secondary+0x1eb #7 start_cpu+0x5 -- CPU#3 -- PID=0 CPU=3 CMD=swapper/3 #-1 native_safe_halt+0xb, 449 bytes of data #0 default_idle+0x1e #1 default_enter_idle+0x45 #2 cpuidle_enter_state+0x40 #3 cpuidle_idle_call+0xd8 #4 arch_cpu_idle+0xe #5 cpu_startup_entry+0x14a #6 start_secondary+0x1eb #7 start_cpu+0x5 +--------------------------------+ >---------------------| How This Dump Has Been Created |---------------------< +--------------------------------+ Cannot identify the specific condition that triggered vmcore +---------------+ >------------------------------| Tasks Summary |------------------------------< +---------------+ Number of Threads That Ran Recently ----------------------------------- last second 17 last 5s 33 last 60s 43 ----- Total Numbers of Threads per State ------ TASK_INTERRUPTIBLE 159 TASK_RUNNING 1 TASK_UNINTERRUPTIBLE 14 +++WARNING+++ There are 3 threads running in their own namespaces Use 'taskinfo --ns' to get more details +-----------------------+ >--------------------------| 5 Most Recent Threads |--------------------------< +-----------------------+ PID CMD Age ARGS ----- -------------- ------ ---------------------------- 21 watchdog/2 0 ms (no user stack) 14 watchdog/1 0 ms (no user stack) 898 in:imjournal 0 ms /usr/sbin/rsyslogd -n 28 watchdog/3 0 ms (no user stack) 20 rcuos/1 172 ms (no user stack) +------------------------+ >-------------------------| Memory Usage (kmem -i) |-------------------------< +------------------------+ PAGES TOTAL PERCENTAGE TOTAL MEM 955079 3.6 GB ---- FREE 767700 2.9 GB 80% of TOTAL MEM USED 187379 731.9 MB 19% of TOTAL MEM SHARED 9962 38.9 MB 1% of TOTAL MEM BUFFERS 5202 20.3 MB 0% of TOTAL MEM CACHED 46411 181.3 MB 4% of TOTAL MEM SLAB 61543 240.4 MB 6% of TOTAL MEM TOTAL HUGE 0 0 ---- HUGE FREE 0 0 0% of TOTAL HUGE TOTAL SWAP 262143 1024 MB ---- SWAP USED 0 0 0% of TOTAL SWAP SWAP FREE 262143 1024 MB 100% of TOTAL SWAP COMMIT LIMIT 739682 2.8 GB ---- COMMITTED 64825 253.2 MB 8% of TOTAL LIMIT +++three oldest UNINTERRUPTIBLE threads ... ran 1444s ago PID=30209 CPU=2 CMD=mrename #0 __schedule+0x2e2 #1 schedule_preempt_disabled+0x39 #2 __mutex_lock_slowpath+0x13a #3 mutex_lock+0x2d #4 lock_rename+0x31 #5 SYSC_renameat2+0x22f #6 sys_renameat2+0xe #7 sys_rename+0x1e #8 system_call_fastpath+0x1f, 477 bytes of data ... ran 1445s ago PID=30132 CPU=3 CMD=mrename #0 __schedule+0x2e2 #1 schedule_preempt_disabled+0x39 #2 __mutex_lock_slowpath+0x13a #3 mutex_lock+0x2d #4 lock_rename+0x31 #5 SYSC_renameat2+0x22f #6 sys_renameat2+0xe #7 sys_rename+0x1e #8 system_call_fastpath+0x1f, 477 bytes of data ... ran 1446s ago PID=29930 CPU=3 CMD=mrename #0 __schedule+0x2e2 #1 schedule_preempt_disabled+0x39 #2 __mutex_lock_slowpath+0x13a #3 mutex_lock+0x2d #4 lock_rename+0xda #5 SYSC_renameat2+0x22f #6 sys_renameat2+0xe #7 sys_rename+0x1e #8 system_call_fastpath+0x1f, 477 bytes of data +-------------------------------+ >----------------------| Scheduler Runqueues (per CPU) |----------------------< +-------------------------------+ ---+ CPU=0 ---- | CURRENT TASK , CMD=swapper/0 ---+ CPU=1 ---- | CURRENT TASK , CMD=swapper/1 ---+ CPU=2 ---- | CURRENT TASK , CMD=swapper/2 ---+ CPU=3 ---- | CURRENT TASK , CMD=swapper/3 +------------------------+ >-------------------------| Network Status Summary |-------------------------< +------------------------+ TCP Connection Info ------------------- ESTABLISHED 6 LISTEN 3 NAGLE disabled (TCP_NODELAY): 5 user_data set (NFS etc.): 4 UDP Connection Info ------------------- 2 UDP sockets, 0 in ESTABLISHED Unix Connection Info ------------------------ ESTABLISHED 26 CLOSE 18 LISTEN 8 Raw sockets info -------------------- CLOSE 1 Interfaces Info --------------- How long ago (in seconds) interfaces transmitted/received? Name RX TX ---- ---------- --------- lo n/a 2018.1 eth0 n/a 1.0 RSS_TOTAL=93344 pages, %mem= 1.4 +++WARNING+++ Possible hang +++WARNING+++ Run 'hanginfo' to get more details +------------+ >-------------------------------| Mounted FS |-------------------------------< +------------+ MOUNT SUPERBLK TYPE DEVNAME DIRNAME ffff880138cca000 ffff880139940800 rootfs rootfs / ffff88012aaec000 ffff88012aaf0000 sysfs sysfs /sys ffff88012aaec1c0 ffff880139944000 proc proc /proc ffff88012aaec380 ffff880137678000 devtmpfs devtmpfs /dev ffff88012aaec540 ffff8800b6c92800 securityfs securityfs /sys/kernel/security ffff88012aaec700 ffff88012aaf0800 tmpfs tmpfs /dev/shm ffff88012aaec8c0 ffff88012db91000 devpts devpts /dev/pts ffff88012aaeca80 ffff88012aaf1000 tmpfs tmpfs /run ffff88012aaecc40 ffff88012aaf1800 tmpfs tmpfs /sys/fs/cgroup ffff88012aaece00 ffff88012aaf2000 cgroup cgroup /sys/fs/cgroup/systemd ffff88012aaecfc0 ffff88012aaf2800 pstore pstore /sys/fs/pstore ffff88012b24ca80 ffff8800b6d2b800 cgroup cgroup /sys/fs/cgroup/blkio ffff88012b24cc40 ffff8800b6d2b000 cgroup cgroup /sys/fs/cgroup/cpu,cpuacct ffff88012b24ce00 ffff8800b6d2a800 cgroup cgroup /sys/fs/cgroup/net_cls,net_prio ffff88012b24cfc0 ffff8800b6d2a000 cgroup cgroup /sys/fs/cgroup/memory ffff88012b24d180 ffff8800b6d2c000 cgroup cgroup /sys/fs/cgroup/freezer ffff88012b24d340 ffff8800b6d2c800 cgroup cgroup /sys/fs/cgroup/hugetlb ffff88012b24d500 ffff8800b6d2d000 cgroup cgroup /sys/fs/cgroup/cpuset ffff88012b24d6c0 ffff8800b6d2d800 cgroup cgroup /sys/fs/cgroup/devices ffff88012b24d880 ffff8800b6d2e000 cgroup cgroup /sys/fs/cgroup/perf_event ffff88012b24da40 ffff8800b6d2e800 cgroup cgroup /sys/fs/cgroup/pids ffff88012b24dc00 ffff8800b6f10800 configfs configfs /sys/kernel/config ffff8800b637c380 ffff8800b618f800 ext4 /dev/nbd0 / ffff8800b637c540 ffff88012aaf6800 rpc_pipefs rpc_pipefs /var/lib/nfs/rpc_pipefs ffff88012b24ddc0 ffff88012a48f800 autofs systemd-1 /proc/sys/fs/binfmt_misc ffff88012b24c8c0 ffff88012db92800 mqueue mqueue /dev/mqueue ffff8800b602a000 ffff88012a48c000 hugetlbfs hugetlbfs /dev/hugepages ffff8800b637c700 ffff880139947800 debugfs debugfs /sys/kernel/debug ffff8800b637c8c0 ffff8800b6282800 binfmt_misc binfmt_misc /proc/sys/fs/binfmt_misc/ ffff8800b637ca80 ffff8800b618d800 ramfs none /mnt ffff880137668fc0 ffff88012a489000 tmpfs none /var/lib/stateless/writable ffff880138ccb180 ffff8800b618e800 squashfs /dev/vda /home/green/git/lustre-release ffff880137669180 ffff88012a489000 tmpfs none /var/cache/man ffff8800b637ce00 ffff88012a489000 tmpfs none /var/log ffff8800b637cfc0 ffff88012a489000 tmpfs none /var/lib/dbus ffff880137669340 ffff88012a489000 tmpfs none /tmp ffff880137669500 ffff88012a489000 tmpfs none /var/lib/dhclient ffff8801376696c0 ffff88012a489000 tmpfs none /var/tmp ffff8800b637d180 ffff88012a489000 tmpfs none /var/lib/NetworkManager ffff880137669880 ffff88012a489000 tmpfs none /var/lib/systemd/random-seed ffff880138ccb340 ffff88012a489000 tmpfs none /var/spool ffff880137669a40 ffff88012a489000 tmpfs none /var/lib/nfs ffff880137669c00 ffff88012a489000 tmpfs none /var/lib/gssproxy ffff880137669dc0 ffff88012a489000 tmpfs none /var/lib/logrotate ffff880138ccb500 ffff88012a489000 tmpfs none /etc ffff880137668e00 ffff88012a489000 tmpfs none /var/lib/rsyslog ffff880137668c40 ffff88012a489000 tmpfs none /var/lib/dhclient/var/lib/dhclient ffff8800b602a1c0 ffff8800b5c4e000 nfs4 192.168.200.253:/exports/state/oleg227-client.virtnet /var/lib/stateless/state ffff8800b637d340 ffff8800b5c4e000 nfs4 192.168.200.253:/exports/state/oleg227-client.virtnet /boot ffff880137668a80 ffff8800b5c4e000 nfs4 192.168.200.253:/exports/state/oleg227-client.virtnet /etc/etc/kdump.conf ffff88012aaed180 ffff88012aaf6800 rpc_pipefs sunrpc /var/lib/nfs/var/lib/nfs/rpc_pipefs ffff88012e35cfc0 ffff8800b6281000 nfs4 192.168.200.253://exports/testreports/51291/testresults/racer-ldiskfs-DNE-centos7_x86_64-centos7_x86_64 /tmp/tmp/testlogs ffff88012e35d180 ffff8800b6285000 tmpfs tmpfs /run/user/0 ffff88012a634380 ffff8800b618e800 squashfs /dev/vda /usr/sbin/mount.lustre ffff8800b637d6c0 ffff8800b368b000 lustre 192.168.202.127@tcp:/lustre /mnt/lustre ffff88012a634c40 ffff8800aa55e800 lustre 192.168.202.127@tcp:/lustre /mnt/lustre2 +-------------------------------+ >----------------------| Last 40 lines of dmesg buffer |----------------------< +-------------------------------+ [ 720.992424] [] __mutex_lock_slowpath+0x13a/0x340 [ 720.994734] [] mutex_lock+0x2d/0x40 [ 720.996765] [] lock_rename+0x31/0xe0 [ 720.999373] [] SYSC_renameat2+0x22f/0x570 [ 721.002090] [] ? handle_mm_fault+0xc2/0x150 [ 721.005383] [] SyS_renameat2+0xe/0x10 [ 721.008812] [] SyS_rename+0x1e/0x20 [ 721.011369] [] system_call_fastpath+0x1f/0x24 [ 721.013424] INFO: task mrename:30442 blocked for more than 120 seconds. [ 721.015492] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.018202] mrename D ffff8800a63f9440 11736 30442 24087 0x00000000 [ 721.021691] Call Trace: [ 721.022526] [] schedule_preempt_disabled+0x39/0x90 [ 721.024882] [] __mutex_lock_slowpath+0x13a/0x340 [ 721.027732] [] mutex_lock+0x2d/0x40 [ 721.029658] [] lock_rename+0x31/0xe0 [ 721.033303] [] SYSC_renameat2+0x22f/0x570 [ 721.034586] [] ? handle_mm_fault+0xc2/0x150 [ 721.037082] [] SyS_renameat2+0xe/0x10 [ 721.039555] [] SyS_rename+0x1e/0x20 [ 721.041490] [] system_call_fastpath+0x1f/0x24 [ 721.044208] INFO: task mkdir:30475 blocked for more than 120 seconds. [ 721.046555] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 721.049921] mkdir D ffff88012dd88000 11760 30475 24090 0x00000000 [ 721.055153] Call Trace: [ 721.055606] [] schedule_preempt_disabled+0x39/0x90 [ 721.057944] [] __mutex_lock_slowpath+0x13a/0x340 [ 721.060618] [] mutex_lock+0x2d/0x40 [ 721.062877] [] filename_create+0x85/0x180 [ 721.066217] [] ? kmem_cache_alloc+0x11b/0x2e0 [ 721.070557] [] ? getname_flags+0xc4/0x1a0 [ 721.073689] [] user_path_create+0x41/0x60 [ 721.080119] [] SyS_mkdirat+0x46/0xe0 [ 721.082665] [] ? path_put+0x1e/0x30 [ 721.085975] [] SyS_mkdir+0x19/0x20 [ 721.087832] [] system_call_fastpath+0x1f/0x24 [ 1455.557103] Lustre: lustre-OST0001-osc-ffff8800b368b000: disconnect after 24s idle [ 1455.562734] Lustre: Skipped 1 previous similar message [ 1475.605082] Lustre: lustre-OST0000-osc-ffff8800aa55e800: disconnect after 21s idle [ 1485.628271] Lustre: lustre-OST0000-osc-ffff8800b368b000: disconnect after 24s idle ****************************************************************************** ************************ A Summary Of Problems Found ************************* ****************************************************************************** -------------------- A list of all +++WARNING+++ messages -------------------- PARTIAL DUMP with size(vmcore) < 25% size(RAM) There are 3 threads running in their own namespaces Use 'taskinfo --ns' to get more details Possible hang Run 'hanginfo' to get more details ------------------------------------------------------------------------------ ** Execution took 12.43s (real) 6.12s (CPU), Child processes: 6.21s