Date: Wed, 3 Jan 2024 18:05:02 -0800 From: Mark Millard <marklmi@yahoo.com> To: "freebsd-amd64@FreeBSD.org" <freebsd-amd64@FreeBSD.org> Subject: main [so: 15] on Ryzen 9 7950X3D [so: amd64]: panic: Unknown caching mode 31 [pmap_cache_bits at sys/amd64/amd64/pmap.c:2697] Message-ID: <A84DADF2-4105-4886-B26D-D7DC528072DE@yahoo.com> References: <A84DADF2-4105-4886-B26D-D7DC528072DE.ref@yahoo.com>
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I've had a couple of 7950X3D crashes when I've not been around to observe, not frequent. I was finally had one happen while I was present. I do not know a way to force a failure on demand. [Note: I currently only have internet access via a limited use cell phone for some number of days. So my report is just the prefix of /var/crash/core.txt.3 .] The system was not running a debug build. Also, it is my personal build. For this I'm unlikely to manage to set up a reproduction via an official build. # more /var/crash/core.txt.3 7950X3D-ZFS dumped core - see /var/crash/vmcore.3 Wed Jan 3 15:07:58 PST 2024 FreeBSD 7950X3D-ZFS 15.0-CURRENT FreeBSD 15.0-CURRENT #134 = main-n266876-e183039f0882-dirty: Fri Dec 8 14:22:35 PST 2023 = root@7950X3D-ZFS:/usr/obj/BUILDs/main-amd64-nodbg-clang/usr/main-src/amd64= .amd64/sys/GENERIC-NODBG amd64 panic: Unknown caching mode 31 GNU gdb (GDB) 13.2 [GDB v13.2 for FreeBSD] Copyright (C) 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later = <http://gnu.org/licenses/gpl.html>; This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-portbld-freebsd15.0". Type "show configuration" for configuration details. For bug reporting instructions, please see: <https://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /boot/kernel/kernel... Reading symbols from /usr/lib/debug//boot/kernel/kernel.debug... Unread portion of the kernel message buffer: panic: Unknown caching mode 31 cpuid =3D 8 time =3D 1704322675 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame = 0xfffffe04293f39e0 vpanic() at vpanic+0x131/frame 0xfffffe04293f3b10 panic() at panic+0x43/frame 0xfffffe04293f3b70 pmap_enter() at pmap_enter+0x104b/frame 0xfffffe04293f3c40 vm_fault() at vm_fault+0x1340/frame 0xfffffe04293f3d60 vm_fault_trap() at vm_fault_trap+0x6b/frame 0xfffffe04293f3db0 trap_pfault() at trap_pfault+0x1d6/frame 0xfffffe04293f3e10 trap() at trap+0x45d/frame 0xfffffe04293f3f30 calltrap() at calltrap+0x8/frame 0xfffffe04293f3f30 --- trap 0xc, rip =3D 0x8268267a5, rsp =3D 0x8279aced8, rbp =3D = 0x8279acf10 --- KDB: enter: panic __curthread () at /usr/main-src/sys/amd64/include/pcpu_aux.h:57 57 __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" = (offsetof(struct pcpu, (kgdb) #0 __curthread () at = /usr/main-src/sys/amd64/include/pcpu_aux.h:57 td =3D <optimized out> #1 doadump (textdump=3Dtextdump@entry=3D0) at /usr/main-src/sys/kern/kern_shutdown.c:403 error =3D 0 coredump =3D <optimized out> #2 0xffffffff804a476a in db_dump (dummy=3D<optimized out>, = dummy2=3D<optimized out>, dummy3=3D<optimized out>, dummy4=3D<optimized = out>) at /usr/main-src/sys/ddb/db_command.c:590 error =3D <optimized out> #3 0xffffffff804a4570 in db_command (last_cmdp=3D<optimized out>, = cmd_table=3D<optimized out>, dopager=3Dtrue) at /usr/main-src/sys/ddb/db_command.c:503 modif =3D = "\000\000\000\000\000\000\000\000$p\033\202\377\377\377\377x\222\227\001\0= 01\370\377\377\000\000\000\000\000\000\000\000\b\000\000\0000\000\000\000\= 2605?)\004\376\377\377P5?)\004\376\377\377$p\033\202\377\377\377\377\3605?= )\004\376\377\377\biJ\200\377\377\377\377\320\302\001\202\377\377\377\377%= L'\201\377\377\377\377 = p\033\202\377\377\377\377\000\000\000\000\000\000\000\000\320\302\001\202\= 377\377\377\377" addr =3D -2135186029 count =3D -1 cmd =3D 0xffffffff8201b768 <db_cmds+616> have_addr =3D <optimized out> t =3D <optimized out> result =3D <optimized out> #4 0xffffffff804a422d in db_command_loop () at /usr/main-src/sys/ddb/db_command.c:550 No locals. #5 0xffffffff804a7bc6 in db_trap (type=3D<optimized out>, = code=3D<optimized out>) at /usr/main-src/sys/ddb/db_main.c:267 jb =3D {{_jb =3D {0, -2181151377896, -2181151377760, = -2113813808, 0, -2181151377888, -8782373759168, = -2142602412, -2181151377792, -2137341649, -2110266400, = 3}}} bkpt =3D false watchpt =3D false prev_jb =3D 0x0 why =3D <optimized out> #6 0xffffffff80bbaff7 in kdb_trap (type=3Dtype@entry=3D3, = code=3Dcode@entry=3D0, tf=3Dtf@entry=3D0xfffffe04293f3920) at = /usr/main-src/sys/kern/subr_kdb.c:790 __pc =3D <optimized out> __pc =3D <optimized out> other_cpus =3D {__bits =3D {5914799713661383268, 0, = -2181151377264, 0, -2135156224, -2128969052, = -2181151377280, -2135161210, 35024195344, 0, 43641681928, = -2128969053, -2128649111, 5, 692009152, -4294967296}} be =3D 0xffffffff8201c2d0 <ddb_dbbe> intr =3D 70 did_stop_cpus =3D <optimized out> handled =3D <optimized out> #7 0xffffffff81051cdd in trap (frame=3D0xfffffe04293f3920) at /usr/main-src/sys/amd64/amd64/trap.c:606 __pc =3D <optimized out> __pc =3D <optimized out> __pc =3D <optimized out> ksi =3D {ksi_link =3D {tqe_next =3D 0xffffffff804a7d5c = <db_printf+92>, tqe_prev =3D 0xfffffe04293f3858}, ksi_info = =3D {si_signo =3D 692009128, si_errno =3D -508, si_code =3D = 0, si_pid =3D 0, si_uid =3D 692009112, si_status =3D -508, = si_addr =3D 0x521597006a5e7264, si_value =3D { sival_int =3D 1016, sival_ptr =3D 0x3f8, sigval_int =3D = 1016, sigval_ptr =3D 0x3f8}, _reason =3D {_fault =3D = {_trapno =3D 692010816}, _timer =3D {_timerid =3D = 692010816, _overrun =3D -508}, _mesgq =3D { _mqd =3D 692010816}, _poll =3D {_band =3D = -2181151375552}, _capsicum =3D {_syscall =3D 692010816}, = __spare__ =3D { __spare1__ =3D -2181151375552, __spare2__ =3D = {664456920, 8, 1784574564, 1377146624, 256, 0, = -1}}}}, ksi_flags =3D -866898064, ksi_sigq =3D = 0xffffffff8126824c} signo =3D 692009312 ucode =3D -508 td =3D <optimized out> p =3D 0xfffffe041d0cfae0 dr6 =3D 0 type =3D 3 addr =3D <optimized out> pf =3D <optimized out> i =3D <optimized out> #8 <signal handler called> No locals. #9 kdb_enter (why=3D<optimized out>, msg=3D<optimized out>) at /usr/main-src/sys/kern/subr_kdb.c:556 No locals. #10 0xffffffff80b6b582 in vpanic ( fmt=3D0xffffffff8126824c "Unknown caching mode %d\n", = ap=3Dap@entry=3D0xfffffe04293f3b50) at /usr/main-src/sys/kern/kern_shutdown.c:953 buf =3D "Unknown caching mode 31\n", '\000' <repeats 231 times> __pc =3D <optimized out> __pc =3D <optimized out> __pc =3D <optimized out> other_cpus =3D {__bits =3D {4294967039, 0 <repeats 15 times>}} td =3D 0xfffff80331bb5740 bootopt =3D <optimized out> newpanic =3D <optimized out> #11 0xffffffff80b6b413 in panic ( fmt=3D0xffffffff820aa2a8 <vt_conswindow+16> "3\370 = \201\377\377\377\377") at /usr/main-src/sys/kern/kern_shutdown.c:889 ap =3D {{gp_offset =3D 16, fp_offset =3D 48, = overflow_arg_area =3D 0xfffffe04293f3b80, reg_save_area =3D = 0xfffffe04293f3b20}} #12 0xffffffff8103d8db in pmap_cache_bits (pmap=3D0xfffff80389ca8ad0, = mode=3D64, is_pde=3D<optimized out>) at = /usr/main-src/sys/amd64/amd64/pmap.c:2697 pat_idx =3D <optimized out> cache_bits =3D <optimized out> pat_flag =3D <optimized out> #13 pmap_enter (pmap=3D0xfffff80389ca8ad0, va=3D<optimized out>, = va@entry=3D8189072760832, m=3D0xfffffe00cc5c2fb0, prot=3D<optimized = out>, flags=3D2, psind=3Dpsind@entry=3D0 '\000') at /usr/main-src/sys/amd64/amd64/pmap.c:7196 lock =3D 0x0 PG_A =3D <optimized out> PG_G =3D <optimized out> PG_M =3D <optimized out> PG_V =3D <optimized out> PG_RW =3D 0 pa =3D 18446741878114365296 newpte =3D <optimized out> rv =3D <optimized out> mpte =3D <optimized out> pde =3D <optimized out> nosleep =3D <optimized out> pte =3D <optimized out> origpte =3D <optimized out> pv =3D <optimized out> opa =3D <optimized out> om =3D <optimized out> #14 0xffffffff80ef3d80 in vm_fault (map=3Dmap@entry=3D0xfffff80389ca89a0,=20= vaddr=3Dvaddr@entry=3D8189072760832, fault_type=3Dfault_type@entry=3D2= '\002', fault_flags=3Dfault_flags@entry=3D0, = m_hold=3Dm_hold@entry=3D0x0) at /usr/main-src/sys/vm/vm_fault.c:1756 ahead =3D 692010240 behind =3D -1 fs =3D <optimized out> faultcount =3D 1 hardfault =3D false rv =3D <optimized out> res =3D <optimized out> res_next =3D <optimized out> #15 0xffffffff80ef292b in vm_fault_trap (map=3D0xfffff80389ca89a0, = vaddr=3Dvaddr@entry=3D8189072760832, fault_type=3D<optimized out>, = fault_flags=3Dfault_flags@entry=3D0, signo=3D0xfffffe04293f3f00, = ucode=3D0xfffffe04293f3f04) at /usr/main-src/sys/vm/vm_fault.c:710 result =3D <optimized out> #16 0xffffffff81052956 in trap_pfault = (frame=3Dframe@entry=3D0xfffffe04293f3f40, usermode=3Dtrue, = signo=3D0x0, signo@entry=3D0xfffffe04293f3f00, = ucode=3D0xfffffe04293f3620, ucode@entry=3D0xfffffe04293f3f04) at /usr/main-src/sys/amd64/amd64/trap.c:843 __pc =3D <optimized out> __pc =3D <optimized out> __pc =3D <optimized out> td =3D 0xfffff80331bb5740 p =3D <optimized out> eva =3D 8189072760832 map =3D 0xffffffff820aa2a8 <vt_conswindow+16> ftype =3D 18 '\022' rv =3D <optimized out> #17 0xffffffff81051eed in trap (frame=3D0xfffffe04293f3f40) at /usr/main-src/sys/amd64/amd64/trap.c:382 __pc =3D <optimized out> __pc =3D <optimized out> __pc =3D <optimized out> ksi =3D {ksi_link =3D {tqe_next =3D 0xfffff80331bb5740, = tqe_prev =3D 0x69d4aff}, ksi_info =3D {si_signo =3D 1, si_errno =3D = 0, si_code =3D 0, si_pid =3D 0, si_uid =3D 2812281728, = si_status =3D 1906, si_addr =3D 0xfffffe04293f3e70, = si_value =3D { sival_int =3D -2129519781, sival_ptr =3D = 0xffffffff81121b5b <lapic_handle_timer+171>, sigval_int =3D= -2129519781, sigval_ptr =3D 0xffffffff81121b5b = <lapic_handle_timer+171>}, _reason =3D {_fault =3D {_trapno = =3D 664456992}, _timer =3D { _timerid =3D 664456992, _overrun =3D 8}, _mesgq =3D { _mqd =3D 664456992}, _poll =3D {_band =3D 35024195360}, = _capsicum =3D {_syscall =3D 664456992}, __spare__ =3D { __spare1__ =3D 35024195360, __spare2__ =3D {12330184, 0, = 664456976, 8, -2130533455, -1, -1446252544}}}}, = ksi_flags =3D 0, ksi_sigq =3D 0x34ea5840} signo =3D 0 ucode =3D 0 td =3D 0xfffff80331bb5740 p =3D 0xfffffe041d0cfae0 dr6 =3D 0 type =3D 12 addr =3D 35005818789 pf =3D <optimized out> i =3D <optimized out> #18 <signal handler called> No locals. #19 0x00000008268267a5 in ?? () No symbol table info available. Backtrace stopped: Cannot access memory at address 0x8279aced8 (kgdb)=20 . . . FYI: /* * Determine the appropriate bits to set in a PTE or PDE for a specified * caching mode. */ int pmap_cache_bits(pmap_t pmap, int mode, boolean_t is_pde) { int cache_bits, pat_flag, pat_idx; if (!pmap_is_valid_memattr(pmap, mode)) panic("Unknown caching mode %d\n", mode); That is all for now. =3D=3D=3D Mark Millard marklmi at yahoo.com
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