Hello devs! This year dump(8) already crashed three times. Fortunately that produced core dumps. But unfortunately debugging symbols are missing:
tower# find /raid1/backups/tower -name dump.core /raid1/backups/tower/2023/05/26/dump.core /raid1/backups/tower/2023/09/21/dump.core /raid1/backups/tower/2023/12/14/dump.core tower# gdb /sbin/dump /raid1/backups/tower/2023/05/26/dump.core GNU gdb 6.3 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-unknown-openbsd7.4"... (no debugging symbols found) warning: exec file is newer than core file. Core was generated by `dump'. Program terminated with signal 11, Segmentation fault. #0 0x000005e01d161fef in ?? () (gdb) bt #0 0x000005e01d161fef in ?? () #1 0x000005e01d161b67 in ?? () #2 0x000005e01d15cacb in ?? () #3 0x000005e01d15ac22 in ?? () #4 0x0000000000000000 in ?? () (gdb) quit tower# gdb /sbin/dump /raid1/backups/tower/2023/09/21/dump.core GNU gdb 6.3 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-unknown-openbsd7.4"... (no debugging symbols found) warning: exec file is newer than core file. Core was generated by `dump'. Program terminated with signal 11, Segmentation fault. #0 0x00000fe3f655dfef in ?? () (gdb) bt #0 0x00000fe3f655dfef in ?? () #1 0x00000fe3f655db67 in ?? () #2 0x00000fe3f6558acb in ?? () #3 0x00000fe3f6556c22 in ?? () #4 0x0000000000000000 in ?? () (gdb) quit tower# gdb /sbin/dump /raid1/backups/tower/2023/12/14/dump.core GNU gdb 6.3 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-unknown-openbsd7.4"... (no debugging symbols found) Core was generated by `dump'. Program terminated with signal 11, Segmentation fault. #0 0x000008e920ed287f in ?? () (gdb) bt #0 0x000008e920ed287f in ?? () #1 0x000008e920ed23f7 in ?? () #2 0x000008e920ecd2bb in ?? () #3 0x000008e920ecb3f2 in ?? () #4 0x0000000000000000 in ?? () (gdb) quit tower# Re-building the userland gave me a /usr/obj/sbin/dump/dump with some debug info at least: mp/dump /raid1/backups/tower/2023/05/26/dump.core < GNU gdb 6.3 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-unknown-openbsd7.4"... warning: exec file is newer than core file. Core was generated by `dump'. Program terminated with signal 11, Segmentation fault. #0 0x000005e01d161fef in searchdir () (gdb) bt #0 0x000005e01d161fef in searchdir () #1 0x000005e01d161b67 in mapdirs () #2 0x000005e01d15cacb in main () (gdb) info line No line number information available. (gdb) quit /backups/tower/2023/09/21/dump.core < GNU gdb 6.3 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-unknown-openbsd7.4"... warning: exec file is newer than core file. Core was generated by `dump'. Program terminated with signal 11, Segmentation fault. #0 0x00000fe3f655dfef in searchdir () (gdb) bt #0 0x00000fe3f655dfef in searchdir () #1 0x00000fe3f655db67 in mapdirs () #2 0x00000fe3f6558acb in main () (gdb) info line No line number information available. (gdb) quit /backups/tower/2023/12/14/dump.core < GNU gdb 6.3 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-unknown-openbsd7.4"... warning: exec file is newer than core file. Core was generated by `dump'. Program terminated with signal 11, Segmentation fault. #0 0x000008e920ed287f in searchdir () (gdb) bt #0 0x000008e920ed287f in searchdir () #1 0x000008e920ed23f7 in mapdirs () #2 0x000008e920ecd2bb in main () (gdb) info line No line number information available. (gdb) quit tower# No line nr, no locals, ... Before you ask: yes, strip -s /usr/obj/sbin/dump/dump produces a binary equal to /sbin/dump. IMAO strange: bt output got shorter, but it isn't nonsense now. Any ideas or more gdb commands I shall try? Best, A/K
