************************ crashinfo ************************* /exports/testreports/48366/testresults/replay-single-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg338-server-fatalerror-core (3.10.0-7.9-debug) +==========================+ | *** Crashinfo v1.3.7 *** | +==========================+ +++WARNING+++ PARTIAL DUMP with size(vmcore) < 25% size(RAM) KERNEL: /tmp/crash-anaysis.8PY1V/vmlinux [TAINTED] DUMPFILE: /exports/testreports/48366/testresults/replay-single-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg338-server-fatalerror-core [PARTIAL DUMP] CPUS: 4 DATE: Tue Jan 7 12:46:54 EST 2025 UPTIME: 02:26:40 LOAD AVERAGE: 1.00, 0.90, 0.78 TASKS: 280 NODENAME: oleg338-server.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 18 last 5s 59 last 60s 70 ----- Total Numbers of Threads per State ------ TASK_INTERRUPTIBLE 275 TASK_RUNNING 1 TASK_UNINTERRUPTIBLE 1 +++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 ----- -------------- ------ ---------------------------- 55 khugepaged 0 ms (no user stack) 14 watchdog/1 0 ms (no user stack) 28 watchdog/3 0 ms (no user stack) 21 watchdog/2 0 ms (no user stack) 20 rcuos/1 93 ms (no user stack) +------------------------+ >-------------------------| Memory Usage (kmem -i) |-------------------------< +------------------------+ PAGES TOTAL PERCENTAGE TOTAL MEM 955067 3.6 GB ---- FREE 715567 2.7 GB 74% of TOTAL MEM USED 239500 935.5 MB 25% of TOTAL MEM SHARED 16123 63 MB 1% of TOTAL MEM BUFFERS 12910 50.4 MB 1% of TOTAL MEM CACHED 76480 298.8 MB 8% of TOTAL MEM SLAB 19090 74.6 MB 1% 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 739676 2.8 GB ---- COMMITTED 65259 254.9 MB 8% of TOTAL LIMIT +-------------------------------+ >----------------------| 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 -------------------- ESTABLISHED 1 Interfaces Info --------------- How long ago (in seconds) interfaces transmitted/received? Name RX TX ---- ---------- --------- lo n/a 8795.2 eth0 n/a 3.3 RSS_TOTAL=63096 pages, %mem= 1.0 +------------+ >-------------------------------| Mounted FS |-------------------------------< +------------+ MOUNT SUPERBLK TYPE DEVNAME DIRNAME ffff880138cca000 ffff880139940800 rootfs rootfs / ffff880138ccaa80 ffff8800b5242800 sysfs sysfs /sys ffff880138ccac40 ffff880139944000 proc proc /proc ffff880138ccae00 ffff880137678000 devtmpfs devtmpfs /dev ffff880138ccafc0 ffff88012b33d800 securityfs securityfs /sys/kernel/security ffff880138ccb180 ffff8800b5243000 tmpfs tmpfs /dev/shm ffff880138ccb340 ffff8801370cc000 devpts devpts /dev/pts ffff880138ccb500 ffff8800b5243800 tmpfs tmpfs /run ffff880138ccb6c0 ffff8800b5244000 tmpfs tmpfs /sys/fs/cgroup ffff880138ccb880 ffff8800b5244800 cgroup cgroup /sys/fs/cgroup/systemd ffff880138ccba40 ffff8800b5245000 pstore pstore /sys/fs/pstore ffff880137668540 ffff8800b54ee800 cgroup cgroup /sys/fs/cgroup/cpu,cpuacct ffff880137668700 ffff8800b54ee000 cgroup cgroup /sys/fs/cgroup/memory ffff8801376688c0 ffff8800b54ed800 cgroup cgroup /sys/fs/cgroup/net_cls,net_prio ffff880137668a80 ffff8800b54ed000 cgroup cgroup /sys/fs/cgroup/perf_event ffff880137668c40 ffff8800b54ef000 cgroup cgroup /sys/fs/cgroup/hugetlb ffff880137668e00 ffff8800b54ef800 cgroup cgroup /sys/fs/cgroup/pids ffff880137668fc0 ffff88012a350000 cgroup cgroup /sys/fs/cgroup/blkio ffff880137669180 ffff88012a350800 cgroup cgroup /sys/fs/cgroup/freezer ffff880137669340 ffff88012a351000 cgroup cgroup /sys/fs/cgroup/devices ffff880137669500 ffff88012a351800 cgroup cgroup /sys/fs/cgroup/cpuset ffff8801376696c0 ffff88012a352000 configfs configfs /sys/kernel/config ffff8801370c4fc0 ffff880129d7d000 ext4 /dev/nbd0 / ffff8801370c5180 ffff8800b525c000 rpc_pipefs rpc_pipefs /var/lib/nfs/rpc_pipefs ffff8801370c5340 ffff880129d79000 autofs systemd-1 /proc/sys/fs/binfmt_misc ffff88012b2968c0 ffff880129ed9000 hugetlbfs hugetlbfs /dev/hugepages ffff88012b296a80 ffff880139947800 debugfs debugfs /sys/kernel/debug ffff88012b296c40 ffff8801370cd800 mqueue mqueue /dev/mqueue ffff8801370c5500 ffff880129d78800 binfmt_misc binfmt_misc /proc/sys/fs/binfmt_misc/ ffff880129c37340 ffff8801377f0800 ramfs none /mnt ffff88012b296e00 ffff880129eda000 squashfs /dev/vda /home/green/git/lustre-release ffff880137669a40 ffff88012b510000 tmpfs none /var/lib/stateless/writable ffff880137669c00 ffff88012b510000 tmpfs none /var/cache/man ffff88012b296fc0 ffff88012b510000 tmpfs none /var/log ffff880137669dc0 ffff88012b510000 tmpfs none /var/lib/dbus ffff8800b40c2000 ffff88012b510000 tmpfs none /tmp ffff88012b297180 ffff88012b510000 tmpfs none /var/lib/dhclient ffff8800b40c21c0 ffff88012b510000 tmpfs none /var/tmp ffff88012b297340 ffff88012b510000 tmpfs none /var/lib/NetworkManager ffff8800b40c2380 ffff88012b510000 tmpfs none /var/lib/systemd/random-seed ffff8800b40c2540 ffff88012b510000 tmpfs none /var/spool ffff8800b40c2700 ffff88012b510000 tmpfs none /var/lib/nfs ffff88012b297500 ffff88012b510000 tmpfs none /var/lib/gssproxy ffff8800b40c28c0 ffff88012b510000 tmpfs none /var/lib/logrotate ffff880129c37500 ffff88012b510000 tmpfs none /etc ffff8800b40c2a80 ffff88012b510000 tmpfs none /var/lib/rsyslog ffff8801370c56c0 ffff88012b510000 tmpfs none /var/lib/dhclient/var/lib/dhclient ffff8800b40c2c40 ffff8800b4b09800 nfs4 192.168.200.253:/exports/state/oleg338-server.virtnet /var/lib/stateless/state ffff8801370c5a40 ffff8800b4b09800 nfs4 192.168.200.253:/exports/state/oleg338-server.virtnet /boot ffff8801370c5c00 ffff8800b4b09800 nfs4 192.168.200.253:/exports/state/oleg338-server.virtnet /etc/etc/kdump.conf ffff88012b2976c0 ffff8800b525c000 rpc_pipefs sunrpc /var/lib/nfs/var/lib/nfs/rpc_pipefs ffff8800b40c3a40 ffff880129eda000 squashfs /dev/vda /usr/sbin/mount.lustre ffff8801368ee000 ffff880089783800 lustre /dev/mapper/ost2_flakey /mnt/lustre-ost2 ffff8800b4954c40 ffff880091510000 lustre /dev/mapper/ost1_flakey /mnt/lustre-ost1 ffff8800739216c0 ffff88012b4eb800 lustre /dev/mapper/mds2_flakey /mnt/lustre-mds2 ffff880073921340 ffff88009be2e000 tmpfs tmpfs /run/user/0 +-------------------------------+ >----------------------| Last 40 lines of dmesg buffer |----------------------< +-------------------------------+ [ 8301.638338] Lustre: lustre-MDT0000: UNLINKED ffff88008faa8000 64bb3b11-afd7-4230-a38c-2a374f07ba02 192.168.203.38@tcp 1 (0 0 0) 1 0 1 0: (null) 523986010115 stale:0 [ 8317.641764] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 16 seconds. The obd refcount = 4. Is it stuck? [ 8317.644935] Lustre: lustre-MDT0000: UNLINKED ffff88008faa8000 64bb3b11-afd7-4230-a38c-2a374f07ba02 192.168.203.38@tcp 1 (0 0 0) 1 0 1 0: (null) 523986010115 stale:0 [ 8349.648760] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 32 seconds. The obd refcount = 4. Is it stuck? [ 8349.652152] Lustre: lustre-MDT0000: UNLINKED ffff88008faa8000 64bb3b11-afd7-4230-a38c-2a374f07ba02 192.168.203.38@tcp 1 (0 0 0) 1 0 1 0: (null) 523986010115 stale:0 [ 8413.655758] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 64 seconds. The obd refcount = 4. Is it stuck? [ 8413.659684] Lustre: lustre-MDT0000: UNLINKED ffff88008faa8000 64bb3b11-afd7-4230-a38c-2a374f07ba02 192.168.203.38@tcp 1 (0 0 0) 1 0 1 0: (null) 523986010115 stale:0 [ 8541.663760] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 128 seconds. The obd refcount = 4. Is it stuck? [ 8541.667168] Lustre: lustre-MDT0000: UNLINKED ffff88008faa8000 64bb3b11-afd7-4230-a38c-2a374f07ba02 192.168.203.38@tcp 1 (0 0 0) 1 0 1 0: (null) 523986010115 stale:0 [ 8592.029049] Lustre: lustre-MDT0000: Not available for connect from 192.168.203.38@tcp (stopping) [ 8592.031456] Lustre: Skipped 298 previous similar messages [ 8760.887799] INFO: task umount:19949 blocked for more than 120 seconds. [ 8760.889360] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 8760.891585] umount D ffff88008dc1ca38 12296 19949 19948 0x00000000 [ 8760.894993] Call Trace: [ 8760.895930] [] schedule+0x29/0x70 [ 8760.897846] [] schedule_timeout+0x13f/0x290 [ 8760.899296] [] ? requeue_timers+0x170/0x170 [ 8760.901539] [] schedule_timeout_uninterruptible+0x1e/0x20 [ 8760.905112] [] obd_exports_barrier+0xb6/0x190 [obdclass] [ 8760.907390] [] mdt_device_fini+0xdc/0x990 [mdt] [ 8760.909115] [] class_cleanup+0xa3c/0xd00 [obdclass] [ 8760.911600] [] class_process_config+0x527/0x26e0 [obdclass] [ 8760.913941] [] ? __kmalloc+0x1e0/0x340 [ 8760.915435] [] class_manual_cleanup+0x1c6/0x760 [obdclass] [ 8760.917526] [] server_put_super+0xa25/0xf80 [obdclass] [ 8760.919385] [] ? _raw_spin_unlock+0xe/0x20 [ 8760.921078] [] ? fsnotify_unmount_inodes+0x1d6/0x1e0 [ 8760.922942] [] generic_shutdown_super+0x6a/0xf0 [ 8760.924950] [] kill_anon_super+0x12/0x20 [ 8760.926819] [] lustre_kill_super+0x2b/0x30 [lustre] [ 8760.929050] [] deactivate_locked_super+0x49/0x60 [ 8760.931249] [] deactivate_super+0x46/0x60 [ 8760.933227] [] cleanup_mnt+0x3f/0x80 [ 8760.934995] [] __cleanup_mnt+0x12/0x20 [ 8760.936795] [] task_work_run+0xb5/0xf0 [ 8760.938834] [] do_notify_resume+0x92/0xb0 [ 8760.940665] [] int_signal+0x12/0x17 [ 8797.671894] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 256 seconds. The obd refcount = 4. Is it stuck? [ 8797.677046] Lustre: lustre-MDT0000: UNLINKED ffff88008faa8000 64bb3b11-afd7-4230-a38c-2a374f07ba02 192.168.203.38@tcp 1 (0 0 0) 1 0 1 0: (null) 523986010115 stale:0 ****************************************************************************** ************************ 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 ------------------------------------------------------------------------------ ** Execution took 10.69s (real) 5.83s (CPU), Child processes: 4.79s