Added clisp as an option for building sbcl on non-x86 platforms (clisp itself requires removing BROKEN in a dependency - bug 237432). When building, an mprotect call fails an assertion: panic: pmap_demote_l2: Invalid virtual address 0x2e0004a7b000 cpuid = 20 time = 1555847196 KDB: stack backtrace: db_trace_self() at db_trace_self_wrapper+0x28 pc = 0xffff0000006fcb70 lr = 0xffff000000123b94 sp = 0xffff000103ea44c0 fp = 0xffff000103ea46d0 db_trace_self_wrapper() at vpanic+0x18c pc = 0xffff000000123b94 lr = 0xffff0000003e8e2c sp = 0xffff000103ea46e0 fp = 0xffff000103ea4790 vpanic() at panic+0x44 pc = 0xffff0000003e8e2c lr = 0xffff0000003e8bf4 sp = 0xffff000103ea47a0 fp = 0xffff000103ea4820 panic() at pmap_demote_l2_locked+0xadc pc = 0xffff0000003e8bf4 lr = 0xffff00000070e674 sp = 0xffff000103ea4830 fp = 0xffff000103ea48d0 pmap_demote_l2_locked() at pmap_protect+0x1dc pc = 0xffff00000070e674 lr = 0xffff00000070f4d0 sp = 0xffff000103ea48e0 fp = 0xffff000103ea4940 pmap_protect() at vm_map_protect+0x2ec pc = 0xffff00000070f4d0 lr = 0xffff0000006ae188 sp = 0xffff000103ea4950 fp = 0xffff000103ea49b0 vm_map_protect() at sys_mprotect+0x58 pc = 0xffff000 sp = 0xffff000103ea49c0 fp = 0xffff000103ea49c0 sys_mprotect() at do_el0_sync+0x4fc pc = 0xffff0000006b3758 lr = 0xffff000000717c58 sp = 0xffff000103ea49d0 fp = 0xffff000103ea4a70 do_el0_sync() at handle_el0_sync+0x84 pc = 0xffff000000717c58 lr = 0xffff0000006fea00 sp = 0xffff000103ea4a80 fp = 0xffff000103ea4b90 handle_el0_sync() at 0x43a83c pc = 0xffff0000006fea00 lr = 0x000000000043a83c sp = 0xffff000103ea4ba0 fp = 0x0000fffffffee930 The panic does not happen on a NODEBUG kernel and nothing bad seems to happen after that :)
Now on a Marvell MACCHIATObin (upstream EDK2, ACPI mode), while doing a lot more things (e.g. tig, meson build..) Also in demote_l2 but from pmap_enter. panic: Invalid l3 page (16000006da0074b != 16000006da007cb) cpuid = 2 time = 1561759063 KDB: stack backtrace: db_trace_self() at db_trace_self_wrapper+0x28 pc = 0xffff000000705f30 lr = 0xffff000000102644 sp = 0xffff00006979d280 fp = 0xffff00006979d490 db_trace_self_wrapper() at vpanic+0x18c pc = 0xffff000000102644 lr = 0xffff0000003f70b4 sp = 0xffff00006979d4a0 fp = 0xffff00006979d550 vpanic() at panic+0x44 pc = 0xffff0000003f70b4 lr = 0xffff0000003f6e64 sp = 0xffff00006979d560 fp = 0xffff00006979d5e0 panic() at pmap_demote_l2_locked+0xb48 pc = 0xffff0000003f6e64 lr = 0xffff0000007187d0 sp = 0xffff00006979d5f0 fp = 0xffff00006979d690 pmap_demote_l2_locked() at pmap_enter+0x5a8 pc = 0xffff0000007187d0 lr = 0xffff00000071a078 sp = 0xffff00006979d6a0 fp = 0xffff00006979d740 pmap_enter() at vm_fault_hold+0x1714 pc = 0xffff00000071a078 lr = 0xffff0000006aac2c sp = 0xffff00006979d750 fp = 0xffff00006979d8c0 vm_fault_hold() at vm_fault+0x60 pc = 0xffff0000006aac2c lr = 0xffff0000006a94c0 sp = 0xffff00006979d8d0 fp = 0xffff00006979d900 vm_fault() at data_abort+0xd0 pc = 0xffff0000006a94c0 lr = 0xffff000000721d68 sp = 0xffff00006979d910 fp = 0xffff00006979d9c0 data_abort() at do_el0_sync+0xc0 pc = 0xffff000000721d68 lr = 0xffff000000721fec sp = 0xffff00006979d9d0 fp = 0xffff00006979da70 do_el0_sync() at handle_el0_sync+0x84 pc = 0xffff000000721fec lr = 0xffff000000708a00 sp = 0xffff00006979da80 fp = 0xffff00006979db90 handle_el0_sync() at 0x40413b90 pc = 0xffff000000708a00 lr = 0x0000000040413b90 sp = 0xffff00006979dba0 fp = 0x0000ffffffff8540 KDB: enter: panic [ thread pid 38171 tid 100434 ] Stopped at 0x40413bd8: undefined f9000008
^Triage: I'm sorry that this PR did not get addressed in a timely fashion. By now, the version that it was created against is out of support. Please re-open if it is still a problem on a supported version.