************************ crashinfo ************************* /exports/testreports/42551/testresults/sanity2-zfs-centos7_x86_64-centos7_x86_64/oleg341-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.vYVlG/vmlinux [TAINTED] DUMPFILE: /exports/testreports/42551/testresults/sanity2-zfs-centos7_x86_64-centos7_x86_64/oleg341-client-timeout-core [PARTIAL DUMP] CPUS: 4 DATE: Wed May 8 19:03:42 EDT 2024 UPTIME: 01:02:56 LOAD AVERAGE: 4.00, 3.99, 3.91 TASKS: 152 NODENAME: oleg341-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 13 last 5s 26 last 60s 32 ----- Total Numbers of Threads per State ------ TASK_INTERRUPTIBLE 144 TASK_RUNNING 1 TASK_UNINTERRUPTIBLE 4 +++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 ----- -------------- ------ ---------------------------- 20 rcuos/1 0 ms (no user stack) 1958 lnet_discovery 0 ms (no user stack) 1 systemd 0 ms /usr/lib/systemd/systemd --switched-root --system --deserialize 22 9 rcu_sched 36 ms (no user stack) 912 in:imjournal 45 ms /usr/sbin/rsyslogd -n +------------------------+ >-------------------------| Memory Usage (kmem -i) |-------------------------< +------------------------+ PAGES TOTAL PERCENTAGE TOTAL MEM 955079 3.6 GB ---- FREE 856135 3.3 GB 89% of TOTAL MEM USED 98944 386.5 MB 10% of TOTAL MEM SHARED 10694 41.8 MB 1% of TOTAL MEM BUFFERS 5207 20.3 MB 0% of TOTAL MEM CACHED 46443 181.4 MB 4% of TOTAL MEM SLAB 11574 45.2 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 739682 2.8 GB ---- COMMITTED 67326 263 MB 9% of TOTAL LIMIT +++three oldest UNINTERRUPTIBLE threads ... ran 3605s ago PID=5281 CPU=1 CMD=ldlm_bl_03 #0 __schedule+0x2e2 #1 schedule+0x29 #2 schedule_timeout+0x209 #3 io_schedule_timeout+0xad #4 io_schedule+0x18 #5 bit_wait_io+0x11 #6 __wait_on_bit_lock+0x5f #7 __lock_page+0x74 #8 __find_lock_page+0x66 #9 find_lock_page+0xe #10 truncate_inode_pages_range+0x4d9 #11 osc_discard_cb+0x20a #12 osc_page_gang_lookup+0x20f #13 osc_lock_discard_pages+0x16a #14 osc_ldlm_blocking_ast+0x35d #15 ldlm_cancel_callback+0x84 #16 ldlm_cli_cancel_local+0xb2 #17 ldlm_cli_cancel_list_local+0xea #18 ldlm_bl_thread_main+0x988 #19 kthread+0xe4 #20 ret_from_fork_nospec_begin+0x7 ... ran 3605s ago PID=19669 CPU=1 CMD=lctl #0 __schedule+0x2e2 #1 schedule+0x29 #2 schedule_timeout+0x209 #3 wait_for_completion+0xfc #4 __ldlm_bl_to_thread+0xfd #5 ldlm_bl_to_thread+0x421 #6 ldlm_bl_to_thread_list+0x19 #7 ldlm_cancel_lru+0x7e #8 lru_size_store+0x67 #9 lustre_attr_store+0x18 #10 sysfs_kf_write+0x3d #11 kernfs_fop_write+0x100 #12 vfs_write+0xd6 #13 sys_write+0x7f #14 system_call_fastpath+0x1f, 477 bytes of data ... ran 3605s ago PID=4782 CPU=0 CMD=ldlm_bl_01 #0 __schedule+0x2e2 #1 schedule+0x29 #2 schedule_timeout+0x209 #3 io_schedule_timeout+0xad #4 io_schedule+0x18 #5 bit_wait_io+0x11 #6 __wait_on_bit_lock+0x5f #7 __lock_page+0x74 #8 __find_lock_page+0x66 #9 find_lock_page+0xe #10 truncate_inode_pages_range+0x4d9 #11 osc_discard_cb+0x20a #12 osc_page_gang_lookup+0x20f #13 osc_lock_discard_pages+0x16a #14 osc_ldlm_blocking_ast+0x35d #15 ldlm_cancel_callback+0x84 #16 ldlm_cli_cancel_local+0xb2 #17 ldlm_cli_cancel_list_local+0xea #18 ldlm_bl_thread_main+0x988 #19 kthread+0xe4 #20 ret_from_fork_nospec_begin+0x7 +-------------------------------+ >----------------------| 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 3774.3 eth0 n/a 0.5 RSS_TOTAL=80648 pages, %mem= 1.3 +++WARNING+++ Possible hang +++WARNING+++ Run 'hanginfo' to get more details +------------+ >-------------------------------| Mounted FS |-------------------------------< +------------+ MOUNT SUPERBLK TYPE DEVNAME DIRNAME ffff880138cca000 ffff880139940800 rootfs rootfs / ffff88012aaf4000 ffff880137300800 sysfs sysfs /sys ffff88012aaf41c0 ffff880139944000 proc proc /proc ffff88012aaf4380 ffff880137678000 devtmpfs devtmpfs /dev ffff88012aaf4540 ffff8800b6ce9800 securityfs securityfs /sys/kernel/security ffff88012aaf4700 ffff880137301000 tmpfs tmpfs /dev/shm ffff88012aaf48c0 ffff88013771f000 devpts devpts /dev/pts ffff88012aaf4a80 ffff880137301800 tmpfs tmpfs /run ffff88012aaf4c40 ffff880137302000 tmpfs tmpfs /sys/fs/cgroup ffff88012aaf4e00 ffff880137302800 cgroup cgroup /sys/fs/cgroup/systemd ffff88012aaf4fc0 ffff880137303000 pstore pstore /sys/fs/pstore ffff88012aaf5180 ffff880137305000 cgroup cgroup /sys/fs/cgroup/freezer ffff88012aaf5340 ffff880137304800 cgroup cgroup /sys/fs/cgroup/cpu,cpuacct ffff88012aaf5500 ffff880137304000 cgroup cgroup /sys/fs/cgroup/memory ffff88012aaf56c0 ffff880137303800 cgroup cgroup /sys/fs/cgroup/net_cls,net_prio ffff88012aaf5880 ffff880137305800 cgroup cgroup /sys/fs/cgroup/blkio ffff88012aaf5a40 ffff880137306000 cgroup cgroup /sys/fs/cgroup/perf_event ffff88012aaf5c00 ffff880137306800 cgroup cgroup /sys/fs/cgroup/pids ffff88012aaf5dc0 ffff880137307000 cgroup cgroup /sys/fs/cgroup/cpuset ffff88012aaac000 ffff880137307800 cgroup cgroup /sys/fs/cgroup/devices ffff88012aaac1c0 ffff88012aac0000 cgroup cgroup /sys/fs/cgroup/hugetlb ffff880137668700 ffff8800b6cea000 configfs configfs /sys/kernel/config ffff880137668a80 ffff8800b5825800 ext4 /dev/nbd0 / ffff88012aaac380 ffff8800b6cee800 rpc_pipefs rpc_pipefs /var/lib/nfs/rpc_pipefs ffff8801377f6c40 ffff8801373de800 autofs systemd-1 /proc/sys/fs/binfmt_misc ffff88012aaac540 ffff88012b290800 mqueue mqueue /dev/mqueue ffff8801377f6e00 ffff880139947800 debugfs debugfs /sys/kernel/debug ffff88012aaac700 ffff8800b66b9000 hugetlbfs hugetlbfs /dev/hugepages ffff880137668c40 ffff8800b679e800 binfmt_misc binfmt_misc /proc/sys/fs/binfmt_misc/ ffff8801377f7180 ffff8800b6ced000 ramfs none /mnt ffff8800b5840700 ffff8800b6636800 tmpfs none /var/lib/stateless/writable ffff880137668e00 ffff8800b66ba000 squashfs /dev/vda /home/green/git/lustre-release ffff880137668fc0 ffff8800b6636800 tmpfs none /var/cache/man ffff88012aaac8c0 ffff8800b6636800 tmpfs none /var/log ffff88012aaaca80 ffff8800b6636800 tmpfs none /var/lib/dbus ffff8800b5840a80 ffff8800b6636800 tmpfs none /tmp ffff880137669180 ffff8800b6636800 tmpfs none /var/lib/dhclient ffff88012aaacc40 ffff8800b6636800 tmpfs none /var/tmp ffff88012aaace00 ffff8800b6636800 tmpfs none /var/lib/NetworkManager ffff8800b5840c40 ffff8800b6636800 tmpfs none /var/lib/systemd/random-seed ffff880137669340 ffff8800b6636800 tmpfs none /var/spool ffff880137669500 ffff8800b6636800 tmpfs none /var/lib/nfs ffff8800b5840e00 ffff8800b6636800 tmpfs none /var/lib/gssproxy ffff8801376696c0 ffff8800b6636800 tmpfs none /var/lib/logrotate ffff8800b5840fc0 ffff8800b6636800 tmpfs none /etc ffff8800b5841180 ffff8800b6636800 tmpfs none /var/lib/rsyslog ffff8801377f7340 ffff8800b6636800 tmpfs none /var/lib/dhclient/var/lib/dhclient ffff880137669880 ffff8800b4447800 nfs4 192.168.200.253:/exports/state/oleg341-client.virtnet /var/lib/stateless/state ffff880137669c00 ffff8800b4447800 nfs4 192.168.200.253:/exports/state/oleg341-client.virtnet /boot ffff8800b5841340 ffff8800b4447800 nfs4 192.168.200.253:/exports/state/oleg341-client.virtnet /etc/etc/kdump.conf ffff88012aaacfc0 ffff8800b6cee800 rpc_pipefs sunrpc /var/lib/nfs/var/lib/nfs/rpc_pipefs ffff8800b6fe08c0 ffff8801373dd000 nfs4 192.168.200.253://exports/testreports/42551/testresults/sanity2-zfs-centos7_x86_64-centos7_x86_64 /tmp/tmp/testlogs ffff8801377f6a80 ffff88012aac5000 tmpfs tmpfs /run/user/0 ffff8800b6fe0a80 ffff8800b66ba000 squashfs /dev/vda /usr/sbin/mount.lustre ffff88012bdca700 ffff8800b6799800 lustre 192.168.203.141@tcp:/lustre /mnt/lustre +-------------------------------+ >----------------------| Last 40 lines of dmesg buffer |----------------------< +-------------------------------+ [ 601.073277] [] ret_from_fork_nospec_begin+0x7/0x21 [ 601.074681] [] ? kthread_create_on_node+0x140/0x140 [ 601.076144] INFO: task ldlm_bl_03:5281 blocked for more than 120 seconds. [ 601.077439] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 601.079073] ldlm_bl_03 D ffff88012b502818 13544 5281 2 0x00000000 [ 601.080853] Call Trace: [ 601.081484] [] ? bit_wait+0x50/0x50 [ 601.082657] [] schedule+0x29/0x70 [ 601.084021] [] schedule_timeout+0x209/0x290 [ 601.085230] [] ? string.isra.7+0x3b/0xf0 [ 601.086604] [] ? kvm_clock_read+0x33/0x40 [ 601.087896] [] ? kvm_clock_get_cycles+0x9/0x10 [ 601.089281] [] ? bit_wait+0x50/0x50 [ 601.090359] [] io_schedule_timeout+0xad/0x130 [ 601.091558] [] io_schedule+0x18/0x20 [ 601.092701] [] bit_wait_io+0x11/0x50 [ 601.093883] [] __wait_on_bit_lock+0x5f/0xc0 [ 601.095021] [] __lock_page+0x74/0x90 [ 601.096246] [] ? wake_bit_function+0x40/0x40 [ 601.097564] [] __find_lock_page+0x66/0x80 [ 601.098898] [] find_lock_page+0xe/0x20 [ 601.100105] [] truncate_inode_pages_range+0x4d9/0x7d0 [ 601.101594] [] ? __cl_page_state_set+0x2f4/0x460 [obdclass] [ 601.103230] [] ? __cl_page_own+0x195/0x390 [obdclass] [ 601.104750] [] osc_discard_cb+0x20a/0x2a0 [osc] [ 601.106124] [] osc_page_gang_lookup+0x20f/0x4e0 [osc] [ 601.107521] [] ? osc_consume_write_grant+0xe0/0xe0 [osc] [ 601.109166] [] osc_lock_discard_pages+0x16a/0x30f [osc] [ 601.110773] [] osc_ldlm_blocking_ast+0x35d/0x670 [osc] [ 601.112551] [] ldlm_cancel_callback+0x84/0x320 [ptlrpc] [ 601.114008] [] ldlm_cli_cancel_local+0xb2/0x460 [ptlrpc] [ 601.115663] [] ldlm_cli_cancel_list_local+0xea/0x270 [ptlrpc] [ 601.117530] [] ldlm_bl_thread_main+0x988/0xb40 [ptlrpc] [ 601.119260] [] ? _raw_spin_unlock_irq+0xe/0x30 [ 601.120729] [] ? wake_up_atomic_t+0x30/0x30 [ 601.121937] [] ? ldlm_handle_bl_callback+0x3e0/0x3e0 [ptlrpc] [ 601.123351] [] kthread+0xe4/0xf0 [ 601.124273] [] ? kthread_create_on_node+0x140/0x140 [ 601.125765] [] ret_from_fork_nospec_begin+0x7/0x21 [ 601.127314] [] ? kthread_create_on_node+0x140/0x140 ****************************************************************************** ************************ 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 11.27s (real) 5.80s (CPU), Child processes: 5.45s