************************ crashinfo ************************* /exports/testreports/68883/testresults/sanity-compr-special9-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg247-server-vmcore (4.18.0rh8.10-debug) +==========================+ | *** Crashinfo v1.3.7 *** | +==========================+ +++WARNING+++ PARTIAL DUMP with size(vmcore) < 25% size(RAM) KERNEL: /tmp/crash-anaysis.NCl6a/vmlinux [TAINTED] DUMPFILE: /exports/testreports/68883/testresults/sanity-compr-special9-zfs-rocky8.10_x86_64-rocky8.10_x86_64/oleg247-server-vmcore [PARTIAL DUMP] CPUS: 4 DATE: Wed Aug 26 13:29:34 EDT 2026 UPTIME: 00:07:35 LOAD AVERAGE: 1.99, 1.74, 0.90 TASKS: 343 NODENAME: oleg247-server.virtnet RELEASE: 4.18.0rh8.10-debug VERSION: #2 SMP Mon Jul 14 01:24:22 EDT 2025 MACHINE: x86_64 (2399 Mhz) MEMORY: 4.1 GB PANIC: "BUG: unable to handle kernel NULL pointer dereference at 0000000000000028" +--------------------------+ >------------------------| Per-cpu Stacks ('bt -a') |------------------------< +--------------------------+ -- CPU#0 -- PID=6497 CPU=0 CMD=z_wr_int #0 crash_nmi_callback+0x6d #1 nmi_handle+0xbd #2 default_do_nmi+0x4b #3 do_nmi+0x280 #4 end_repeat_nmi+0x16 #-1 vprintk_emit+0x38d, 507 bytes of data #5 vprintk_emit+0x38d #6 vprintk_default+0x21 #7 vprintk+0x5b #8 printk+0x5f #9 spl_panic+0xaa #10 arc_write_done+0x56c #11 zio_done+0x3f7 #12 zio_execute+0xbb #13 taskq_thread+0x45c #14 kthread+0x1d1 #15 ret_from_fork+0x1f -- CPU#1 -- PID=7284 CPU=1 CMD=z_wr_int #0 machine_kexec+0x243 #1 __crash_kexec+0xaa #2 panic+0x160 #3 spl_panic+0xe7 #4 arc_write_done+0x56c #5 zio_done+0x3f7 #6 zio_execute+0xbb #7 taskq_thread+0x45c #8 kthread+0x1d1 #9 ret_from_fork+0x1f -- CPU#2 -- PID=6512 CPU=2 CMD=dp_sync_taskq #0 crash_nmi_callback+0x6d #1 nmi_handle+0xbd #2 default_do_nmi+0x4b #3 do_nmi+0x280 #4 end_repeat_nmi+0x16 #-1 get_ksymbol+0xa0, 507 bytes of data #5 get_ksymbol+0xa0 #6 module_address_lookup+0x63 #7 kallsyms_lookup+0x10c #8 __sprint_symbol+0x4f #9 sprint_backtrace+0x1c #10 symbol_string+0xe4 #11 pointer+0x39f #12 vsnprintf+0x12c #13 vprintk_store+0xbd #14 vprintk_emit+0x1ae #15 vprintk_default+0x21 #16 vprintk+0x5b #17 printk+0x5f #18 show_trace_log_lvl+0x3ae #19 show_regs.cold.9+0x22 #20 __die_body+0x22 #21 __die+0x33 #22 no_context+0x30f #23 __bad_area_nosemaphore+0x1c6 #24 bad_area_nosemaphore+0x1a #25 do_user_addr_fault+0x540 #26 __do_page_fault+0x6b #27 do_page_fault+0x87 #28 page_fault+0x1e #-1 arc_write+0x3bb, 477 bytes of data #29 dbuf_write+0x326 #30 dbuf_sync_leaf+0x178 #31 dbuf_sync_list+0x12d #32 dbuf_sync_indirect+0x11c #33 dbuf_sync_list+0xed #34 dbuf_sync_indirect+0x11c #35 dbuf_sync_list+0xed #36 dnode_sync+0x503 #37 sync_dnodes_task+0xd2 #38 taskq_thread+0x45c #39 kthread+0x1d1 #40 ret_from_fork+0x1f -- CPU#3 -- PID=0 CPU=3 CMD=swapper/3 #0 crash_nmi_callback+0x6d #1 nmi_handle+0xbd #2 default_do_nmi+0x4b #3 do_nmi+0x280 #4 end_repeat_nmi+0x16 #-1 native_safe_halt+0x2e, 507 bytes of data #5 native_safe_halt+0x2e #6 default_idle+0x1a #7 arch_cpu_idle+0x13 #8 default_idle_call+0xb8 #9 do_idle+0x3c9 #10 cpu_startup_entry+0x9f #11 start_secondary+0x2b8 #12 secondary_startup_64_no_verify+0xd1 +--------------------------------+ >---------------------| How This Dump Has Been Created |---------------------< +--------------------------------+ *** Panic *** BUG: unable to handle kernel NULL pointer dereference at 0000000000000028 +---------------+ >------------------------------| Tasks Summary |------------------------------< +---------------+ +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task 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+++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task +++ERROR+++ corrupted task Number of Threads That Ran Recently ----------------------------------- last second 84 last 5s 129 last 60s 158 ----- Total Numbers of Threads per State ------ ?? 340 +++WARNING+++ There are 6 threads running in their own namespaces Use 'taskinfo --ns' to get more details +-----------------------+ >--------------------------| 5 Most Recent Threads |--------------------------< +-----------------------+ PID CMD Age ARGS ----- -------------- ------ ---------------------------- 12132 z_wr_int -1 ms (no user stack) 6497 z_wr_int 0 ms (no user stack) 7284 z_wr_int 0 ms (no user stack) 1028 rngd 0 ms (no user stack) 6512 dp_sync_taskq 1 ms (no user stack) +------------------------+ >-------------------------| Memory Usage (kmem -i) |-------------------------< +------------------------+ PAGES TOTAL PERCENTAGE TOTAL MEM 945443 3.6 GB ---- FREE 672938 2.6 GB 71% of TOTAL MEM USED 272505 1 GB 28% of TOTAL MEM SHARED 19117 74.7 MB 2% of TOTAL MEM BUFFERS 7441 29.1 MB 0% of TOTAL MEM CACHED 107298 419.1 MB 11% of TOTAL MEM SLAB 10867 42.4 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 734864 2.8 GB ---- COMMITTED 85611 334.4 MB 11% of TOTAL LIMIT print_blkreq is not supported on this kernel Traceback (most recent call last): File "/usr/local/crash/mpykdump.so/progs/crashinfo.py", line 1673, in File "/home/green/git/pykdump/LinuxDump/Dev.py", line 500, in print_gendisk # Get the list of (dev, gendisk) sorted by dev File "/home/green/git/pykdump/LinuxDump/Dev.py", line 473, in get_gendisks ttype = target.type File "/home/green/git/pykdump/pykdump/lowlevel.py", line 391, in __getattr__ raise KeyError(msg) KeyError: ' does not have a field ' ****************************************************************************** ************************ A Summary Of Problems Found ************************* ****************************************************************************** -------------------- A list of all +++WARNING+++ messages -------------------- PARTIAL DUMP with size(vmcore) < 25% size(RAM) There are 6 threads running in their own namespaces Use 'taskinfo --ns' to get more details --------------------- A list of all +++ERROR+++ messages --------------------- corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task corrupted task ------------------------------------------------------------------------------ ** Execution took 24.17s (real) 9.33s (CPU), Child processes: 14.53s