************************ crashinfo ************************* /exports/testreports/48397/testresults/replay-single-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg102-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.iB0Km/vmlinux [TAINTED] DUMPFILE: /exports/testreports/48397/testresults/replay-single-ldiskfs-DNE-centos7_x86_64-centos7_x86_64/oleg102-server-fatalerror-core [PARTIAL DUMP] CPUS: 4 DATE: Wed Jan 8 15:03:50 EST 2025 UPTIME: 02:29:38 LOAD AVERAGE: 1.00, 0.90, 0.79 TASKS: 283 NODENAME: oleg102-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 20 last 5s 55 last 60s 67 ----- Total Numbers of Threads per State ------ TASK_INTERRUPTIBLE 278 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 ----- -------------- ------ ---------------------------- 6823 ldlm_bl_02 0 ms (no user stack) 3912 kworker/3:1 0 ms (no user stack) 23790 kworker/0:1 0 ms (no user stack) 25141 mdt00_001 0 ms (no user stack) 29930 ll_ost00_023 0 ms (no user stack) +------------------------+ >-------------------------| Memory Usage (kmem -i) |-------------------------< +------------------------+ PAGES TOTAL PERCENTAGE TOTAL MEM 955067 3.6 GB ---- FREE 713546 2.7 GB 74% of TOTAL MEM USED 241521 943.4 MB 25% of TOTAL MEM SHARED 12385 48.4 MB 1% of TOTAL MEM BUFFERS 8456 33 MB 0% of TOTAL MEM CACHED 76467 298.7 MB 8% of TOTAL MEM SLAB 18398 71.9 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 65271 255 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 8976.2 eth0 n/a 1.2 RSS_TOTAL=60132 pages, %mem= 0.9 +------------+ >-------------------------------| Mounted FS |-------------------------------< +------------+ MOUNT SUPERBLK TYPE DEVNAME DIRNAME ffff880138cca000 ffff880139940800 rootfs rootfs / ffff880137668380 ffff8800b5224000 sysfs sysfs /sys ffff880137668540 ffff880139944000 proc proc /proc ffff880137668700 ffff880137678000 devtmpfs devtmpfs /dev ffff8801376688c0 ffff88012b376000 securityfs securityfs /sys/kernel/security ffff880137668a80 ffff8800b5224800 tmpfs tmpfs /dev/shm ffff880137668c40 ffff8801372fe000 devpts devpts /dev/pts ffff880137668e00 ffff8800b5225000 tmpfs tmpfs /run ffff880137668fc0 ffff8800b5225800 tmpfs tmpfs /sys/fs/cgroup ffff880137669180 ffff8800b5226000 cgroup cgroup /sys/fs/cgroup/systemd ffff880137669340 ffff8800b5226800 pstore pstore /sys/fs/pstore ffff880137669500 ffff88012a348800 cgroup cgroup /sys/fs/cgroup/hugetlb ffff8801376696c0 ffff88012a348000 cgroup cgroup /sys/fs/cgroup/pids ffff880137669880 ffff88012a349000 cgroup cgroup /sys/fs/cgroup/cpuset ffff880137669a40 ffff88012a349800 cgroup cgroup /sys/fs/cgroup/cpu,cpuacct ffff880137669c00 ffff88012a34a000 cgroup cgroup /sys/fs/cgroup/net_cls,net_prio ffff880137669dc0 ffff88012a34a800 cgroup cgroup /sys/fs/cgroup/devices ffff88012a368000 ffff88012a34b000 cgroup cgroup /sys/fs/cgroup/perf_event ffff88012a3681c0 ffff88012a34b800 cgroup cgroup /sys/fs/cgroup/freezer ffff88012a368380 ffff88012a34c000 cgroup cgroup /sys/fs/cgroup/blkio ffff88012a368540 ffff88012a34c800 cgroup cgroup /sys/fs/cgroup/memory ffff88012a3688c0 ffff88012a34f000 configfs configfs /sys/kernel/config ffff88012a368e00 ffff88012a34d800 ext4 /dev/nbd0 / ffff880138ccafc0 ffff8800b5281800 rpc_pipefs rpc_pipefs /var/lib/nfs/rpc_pipefs ffff88012b272c40 ffff880129dda000 autofs systemd-1 /proc/sys/fs/binfmt_misc ffff88012b272e00 ffff8801372ff800 mqueue mqueue /dev/mqueue ffff88012a368fc0 ffff8800b418d000 hugetlbfs hugetlbfs /dev/hugepages ffff8800b53356c0 ffff880139947800 debugfs debugfs /sys/kernel/debug ffff88012b272fc0 ffff880129ddf000 binfmt_misc binfmt_misc /proc/sys/fs/binfmt_misc/ ffff88012b273180 ffff8800b4ee7800 ramfs none /mnt ffff880138ccb180 ffff8800b418b800 squashfs /dev/vda /home/green/git/lustre-release ffff88012a369180 ffff8800b434a800 tmpfs none /var/lib/stateless/writable ffff88012a369340 ffff8800b434a800 tmpfs none /var/cache/man ffff88012b273340 ffff8800b434a800 tmpfs none /var/log ffff8800b5335c00 ffff8800b434a800 tmpfs none /var/lib/dbus ffff88012b273500 ffff8800b434a800 tmpfs none /tmp ffff8800b5335dc0 ffff8800b434a800 tmpfs none /var/lib/dhclient ffff88012b2736c0 ffff8800b434a800 tmpfs none /var/tmp ffff88012b273880 ffff8800b434a800 tmpfs none /var/lib/NetworkManager ffff88012a369500 ffff8800b434a800 tmpfs none /var/lib/systemd/random-seed ffff880138ccb340 ffff8800b434a800 tmpfs none /var/spool ffff8800b5335500 ffff8800b434a800 tmpfs none /var/lib/nfs ffff880138ccb500 ffff8800b434a800 tmpfs none /var/lib/gssproxy ffff88012a3696c0 ffff8800b434a800 tmpfs none /var/lib/logrotate ffff8800b5335340 ffff8800b434a800 tmpfs none /etc ffff88012b273a40 ffff8800b434a800 tmpfs none /var/lib/rsyslog ffff88012b273c00 ffff8800b434a800 tmpfs none /var/lib/dhclient/var/lib/dhclient ffff88012b273dc0 ffff8800b5285000 nfs4 192.168.200.253:/exports/state/oleg102-server.virtnet /var/lib/stateless/state ffff88012a369880 ffff8800b5285000 nfs4 192.168.200.253:/exports/state/oleg102-server.virtnet /boot ffff8800b5335180 ffff8800b5285000 nfs4 192.168.200.253:/exports/state/oleg102-server.virtnet /etc/etc/kdump.conf ffff88012a369a40 ffff8800b5281800 rpc_pipefs sunrpc /var/lib/nfs/var/lib/nfs/rpc_pipefs ffff88012bf49880 ffff8800b418b800 squashfs /dev/vda /usr/sbin/mount.lustre ffff8801310356c0 ffff8800a454a800 lustre /dev/mapper/ost2_flakey /mnt/lustre-ost2 ffff8800a5433a40 ffff88009273f800 lustre /dev/mapper/ost1_flakey /mnt/lustre-ost1 ffff88012fec6540 ffff8800947e9000 lustre /dev/mapper/mds2_flakey /mnt/lustre-mds2 ffff880094d31dc0 ffff880136aaf000 tmpfs tmpfs /run/user/0 +-------------------------------+ >----------------------| Last 40 lines of dmesg buffer |----------------------< +-------------------------------+ [ 8482.406457] Lustre: lustre-MDT0000: UNLINKED ffff88012c763800 cb7a860d-20ab-4f8e-8b88-c5dbc4e5730b 192.168.201.2@tcp 1 (0 0 0) 1 0 1 0: (null) 536870912003 stale:0 [ 8498.412769] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 16 seconds. The obd refcount = 4. Is it stuck? [ 8498.419960] Lustre: lustre-MDT0000: UNLINKED ffff88012c763800 cb7a860d-20ab-4f8e-8b88-c5dbc4e5730b 192.168.201.2@tcp 1 (0 0 0) 1 0 1 0: (null) 536870912003 stale:0 [ 8530.428697] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 32 seconds. The obd refcount = 4. Is it stuck? [ 8530.433792] Lustre: lustre-MDT0000: UNLINKED ffff88012c763800 cb7a860d-20ab-4f8e-8b88-c5dbc4e5730b 192.168.201.2@tcp 1 (0 0 0) 1 0 1 0: (null) 536870912003 stale:0 [ 8594.439738] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 64 seconds. The obd refcount = 4. Is it stuck? [ 8594.444828] Lustre: lustre-MDT0000: UNLINKED ffff88012c763800 cb7a860d-20ab-4f8e-8b88-c5dbc4e5730b 192.168.201.2@tcp 1 (0 0 0) 1 0 1 0: (null) 536870912003 stale:0 [ 8627.652906] Lustre: lustre-MDT0000: Not available for connect from 192.168.201.2@tcp (stopping) [ 8627.657183] Lustre: Skipped 165 previous similar messages [ 8722.450748] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 128 seconds. The obd refcount = 4. Is it stuck? [ 8722.457051] Lustre: lustre-MDT0000: UNLINKED ffff88012c763800 cb7a860d-20ab-4f8e-8b88-c5dbc4e5730b 192.168.201.2@tcp 1 (0 0 0) 1 0 1 0: (null) 536870912003 stale:0 [ 8880.899861] INFO: task umount:17953 blocked for more than 120 seconds. [ 8880.902896] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 8880.906115] umount D ffff8800b1e02818 12296 17953 17952 0x00000000 [ 8880.909236] Call Trace: [ 8880.910382] [] schedule+0x29/0x70 [ 8880.912741] [] schedule_timeout+0x13f/0x290 [ 8880.915508] [] ? requeue_timers+0x170/0x170 [ 8880.918188] [] schedule_timeout_uninterruptible+0x1e/0x20 [ 8880.921450] [] obd_exports_barrier+0xb6/0x190 [obdclass] [ 8880.924683] [] mdt_device_fini+0xdc/0x990 [mdt] [ 8880.927597] [] class_cleanup+0xa3c/0xd00 [obdclass] [ 8880.930634] [] class_process_config+0x527/0x26e0 [obdclass] [ 8880.933801] [] ? __kmalloc+0x1e0/0x340 [ 8880.936396] [] class_manual_cleanup+0x1c6/0x760 [obdclass] [ 8880.939744] [] server_put_super+0xa25/0xf80 [obdclass] [ 8880.942742] [] ? _raw_spin_unlock+0xe/0x20 [ 8880.945448] [] ? fsnotify_unmount_inodes+0x1d6/0x1e0 [ 8880.948443] [] generic_shutdown_super+0x6a/0xf0 [ 8880.951303] [] kill_anon_super+0x12/0x20 [ 8880.953928] [] lustre_kill_super+0x2b/0x30 [lustre] [ 8880.956928] [] deactivate_locked_super+0x49/0x60 [ 8880.959790] [] deactivate_super+0x46/0x60 [ 8880.962431] [] cleanup_mnt+0x3f/0x80 [ 8880.964844] [] __cleanup_mnt+0x12/0x20 [ 8880.967267] [] task_work_run+0xb5/0xf0 [ 8880.969639] [] do_notify_resume+0x92/0xb0 [ 8880.972094] [] int_signal+0x12/0x17 [ 8978.464716] Lustre: lustre-MDT0000 is waiting for obd_unlinked_exports more than 256 seconds. The obd refcount = 4. Is it stuck? [ 8978.469879] Lustre: lustre-MDT0000: UNLINKED ffff88012c763800 cb7a860d-20ab-4f8e-8b88-c5dbc4e5730b 192.168.201.2@tcp 1 (0 0 0) 1 0 1 0: (null) 536870912003 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 10.08s (real) 5.49s (CPU), Child processes: 4.56s