Created attachment 152827 [details] core.txt After dozen times using suspend to RAM... :( Unread portion of the kernel message buffer: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xfffffe758ffff000 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80961158 stack pointer = 0x28:0xfffffe0120a1d780 frame pointer = 0x28:0xfffffe0120a1d820 code segment = base rx0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 1581 (sh) (kgdb) bt #0 doadump (textdump=Unhandled dwarf expression opcode 0x93 ) at pcpu.h:219 #1 0xffffffff8031abae in db_dump (dummy=<value optimized out>, dummy2=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/ddb/db_command.c:533 #2 0xffffffff8031a68c in db_command (cmd_table=0x0) at /usr/src/sys/ddb/db_command.c:440 #3 0xffffffff8031a3f4 in db_command_loop () at /usr/src/sys/ddb/db_command.c:493 #4 0xffffffff8031cfb0 in db_trap (type=<value optimized out>, code=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/ddb/db_main.c:251 #5 0xffffffff8067074e in kdb_trap (type=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/kern/subr_kdb.c:654 #6 0xffffffff8096b739 in trap_fatal (frame=0xfffffe0120a1d6d0, eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:856 #7 0xffffffff8096bab1 in trap_pfault (frame=0xfffffe0120a1d6d0, usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:678 #8 0xffffffff8096b0ee in trap (frame=0xfffffe0120a1d6d0) at /usr/src/sys/amd64/amd64/trap.c:426 #9 0xffffffff8094e7d2 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:235 #10 0xffffffff80961158 in pmap_copy (dst_pmap=0xfffff800ad55b8f8, src_pmap=0xfffff80002960ae8, dst_addr=<value optimized out>, len=<value optimized out>, src_addr=<value optimized out>) at /usr/src/sys/amd64/amd64/pmap.c:581 #11 0xffffffff8092b20d in vmspace_fork (vm1=0xfffff800029609b0, fork_charge=0xfffffe0120a1d940) at /usr/src/sys/vm/vm_map.c:3192 #12 0xffffffff805f0e51 in fork1 (td=0xfffff80007d534a0, flags=20, pages=Cannot access memory at address 0x4 ) at /usr/src/sys/kern/kern_fork.c:849 #13 0xffffffff805f0bbf in sys_fork (td=0xfffff80007d534a0, uap=<value optimized out>) at /usr/src/sys/kern/kern_fork.c:106 #14 0xffffffff8096c1a7 in amd64_syscall (td=0xfffff80007d534a0, traced=0) at subr_syscall.c:133 #15 0xffffffff8094eabb in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:395 #16 0x0000000800b4d56a in ?? () Previous frame inner to this frame (corrupt stack?) Current language: auto; currently minimal (kgdb) frame 10 #10 0xffffffff80961158 in pmap_copy (dst_pmap=0xfffff800ad55b8f8, src_pmap=0xfffff80002960ae8, dst_addr=<value optimized out>, len=<value optimized out>, src_addr=<value optimized out>) at /usr/src/sys/amd64/amd64/pmap.c:581 581 if (pdpe == NULL || (*pdpe & PG_V) == 0) (kgdb) l 576 pdp_entry_t *pdpe; 577 pt_entry_t PG_V; 578 579 PG_V = pmap_valid_bit(pmap); 580 pdpe = pmap_pdpe(pmap, va); 581 if (pdpe == NULL || (*pdpe & PG_V) == 0) 582 return (NULL); 583 return (pmap_pdpe_to_pde(pdpe, va)); 584 } 585 (kgdb) p pdpe $1 = <value optimized out> (kgdb) p *pdpe Cannot access memory at address 0xa5a5a5a5a5a5a5a5
Again, on ZFS this time: Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 01 fault virtual address = 0x38 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff81273f23 stack pointer = 0x28:0xfffffe01202a0980 frame pointer = 0x28:0xfffffe01202a09b0 code segment = base rx0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 5 (arc_reclaim_thread) (kgdb) bt #0 doadump (textdump=Unhandled dwarf expression opcode 0x93 ) at pcpu.h:219 #1 0xffffffff8031adee in db_dump (dummy=<value optimized out>, dummy2=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/ddb/db_command.c:533 #2 0xffffffff8031a8cc in db_command (cmd_table=0x0) at /usr/src/sys/ddb/db_command.c:440 #3 0xffffffff8031a634 in db_command_loop () at /usr/src/sys/ddb/db_command.c:493 #4 0xffffffff8031d1f0 in db_trap (type=<value optimized out>, code=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/ddb/db_main.c:251 #5 0xffffffff806724ee in kdb_trap (type=Unhandled dwarf expression opcode 0x93 ) at /usr/src/sys/kern/subr_kdb.c:654 #6 0xffffffff8096d469 in trap_fatal (frame=0xfffffe01202a08d0, eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:856 #7 0xffffffff8096d7e1 in trap_pfault (frame=0xfffffe01202a08d0, usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:678 #8 0xffffffff8096ce1e in trap (frame=0xfffffe01202a08d0) at /usr/src/sys/amd64/amd64/trap.c:426 #9 0xffffffff80950472 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:235 #10 0xffffffff81273f23 in dbuf_destroy (db=0xfffff80107f000e0) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1826 #11 0xffffffff812786b1 in dbuf_do_evict (private=<value optimized out>) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1792 #12 0xffffffff8126bc61 in arc_do_user_evicts () at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c:2484 #13 0xffffffff8126f1bf in arc_reclaim_thread (dummy=0x0) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c:2785 #14 0xffffffff805f42ca in fork_exit (callout=0xffffffff8126ef90 <arc_reclaim_thread>, arg=0x0, frame=0xfffffe01202a0ac0) at /usr/src/sys/kern/kern_fork.c:996 #15 0xffffffff809509ae in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:610 #16 0x0000000000000000 in ?? () (kgdb) frame 10 #10 0xffffffff81273f23 in dbuf_destroy (db=0xfffff80107f000e0) at /usr/src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1826 1826 dbuf_hash_remove(db); (kgdb) p *db $1 = {db = {db_object = 4593513014824267775, db_offset = 18446744071562051071, db_size = 17255535289300942782, db_data = 0x0}, db_objset = 0xfffff80007474c00, db_dnode_handle = 0x0, db_parent = 0xfffff8010baf9380, db_hash_next = 0x0, db_blkid = 0, db_blkptr = 0x0, db_level = 0 '\0', db_mtx = {lock_object = {lo_name = 0xffffffff8137234d "db->db_mtx", lo_flags = 40960000, lo_data = 0, lo_witness = 0x0}, sx_lock = 1}, db_state = DB_EVICTING, db_holds = {rc_count = 0}, db_buf = 0x0, db_changed = { cv_description = 0xffffffff81372359 "db->db_changed", cv_waiters = 0}, db_data_pending = 0x0, db_last_dirty = 0x0, db_link = { avl_child = {0x0, 0x0}, avl_pcb = 1}, db_user_ptr = 0x0, db_evict_func = 0, db_immediate_evict = 0 '\0', db_freed_in_flight = 0 '\0', db_dirtycnt = 0 '\0'}
Closing. Not sure if it was fixed but it never happened again.