Re: PR 252541: Early kernel panic on RPi4B (Too many early devmatch mappings)
Mark Millard via freebsd-arm <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <[email protected]> |
On 2021-Jan-11, at 14:23, Mark Millard <marklmi at yahoo.com> wrote: > On 2021-Jan-11, at 12:47, Gordon Bergling <gbe at freebsd.org> wrote: > > Hi, > > I am currently investigating PR 252541 (Too many early devmatch mappings) [1]. > > The kernel panic happends on the RPi4B. Has anyone successfully booted a rivision > on the RPi4B after: > > --------------------------------------------------------------------------------- > commit e83fdf8bb391579fa422d34663cd8c1f82a00dc0 > Author: Chuck Tuffli <[email protected]> > AuthorDate: 2021-01-08 22:36:37 +0000 > Commit: Chuck Tuffli <[email protected]> > CommitDate: 2021-01-08 22:41:45 +0000 > > fix big-endian platforms after 6733401935f8 > > The NVMe byte-swap routines for big-endian platforms used memcpy() to > move the unaligned 64-bit value into a temp register to byte swap it. > Instead of introducing a dependency, manually byte-swap the values in > place. > --------------------------------------------------------------------------------- > > --Gordon > > [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252541 > > I do my own builds but I'm running based on 19cca0b9613d > with CommitDate 2021-01-09 16:21:33 -0800 : > > # ~/fbsd-based-on-what-freebsd-main.sh mm-src > 19cca0b9613d7c3058e41baf0204245119732235 > CommitDate: 2021-01-09 16:21:33 -0800 > 5d333ee67ac3 19cca0b9613d (HEAD -> mm-src) mm-src snapshot for mm's patched build in git context. > FreeBSD RPi4B 13.0-CURRENT FreeBSD 13.0-CURRENT mm-src-c255807-g5d333ee67ac3 GENERIC-NODBG arm64 aarch64 1300134 1300134 > > In other words, the history spanned for e83fdf8bb391 and > after is: > > * aio: fix the tests when ZFS is not available Alan Somers 46 hours 2 -0/+5 > * linuxkpi: Fix the "error: unknown type name 'u32'" compilation issue when Neel Chauhan 47 hours 1 -0/+1 > * netmap: vtnet: stop krings during interface reset Vincenzo Maffione 48 hours 1 -1/+7 > * netmap: refactor netmap_reset Vincenzo Maffione 2 days 1 -45/+20 > * netmap: iflib: fix asserts in netmap_fl_refill() Vincenzo Maffione 2 days 1 -1/+2 > * netmap: iflib: stop krings during interface reset Vincenzo Maffione 2 days 2 -1/+10 > * fileargs: add tests Mariusz Zaborski 2 days 3 -0/+625 > * tcp: don't use KTLS socket option on listening sockets Michael Tuexen 4 days 1 -0/+10 > * arm: revert MAXDSIZ change from 202aea9c82ea Kyle Evans 2 days 1 -1/+1 > * kevent(2): Bugfix for wrong EVFILT_TIMER timeouts Jan Kokemüller 2 days 1 -1/+1 > * ldd: renumber executable type constants Ed Maste 2 days 1 -2/+2 > * diff: honour flags with -q Ed Maste 2 days 2 -1/+13 > * sysctl: improve debug.kdb.panic_str description Warner Losh 2 days 1 -1/+1 > * last(1): Add EXAMPLES section Fernando Apesteguía 2 days 1 -4/+22 > * man(1): Bump .Dd Fernando Apesteguía 2 days 1 -1/+1 > * man(1): Add EXAMPLES section Fernando Apesteguía 2 days 1 -0/+35 > * mvneta: Acquire the softc lock before clearing the MIB Mark Johnston 2 days 1 -0/+2 > * Add fib lookup testing module. Alexander V. Chernikov 2 days 2 -0/+548 > * Bring DPDK route lookups to FreeBSD. Alexander V. Chernikov 2 days 17 -0/+6030 > * Fix LINT kernel build after 01f2e864f79584c0cd250a8e7cfb501a9985768a. Hans Petter Selasky 3 days 1 -1/+4 > * certctl: factor out certname resolution Kyle Evans 3 days 1 -2/+17 > * certctl: replace hardcoded uses of /usr/local Kyle Evans 3 days 1 -2/+3 > * fix big-endian platforms after 6733401935f8 Chuck Tuffli 3 days 1 -5/+9 > > The RPi4B is a 8 GiByte one, booted directly from a USB3 SSD, > no microsd card involved. I can boot either u-boot style or > UEFI/ACPI style from the same media, just switching config.txt > content. > > I do not have MMCCAM or the like: > > # more /usr/fbsd/mm-src/sys/arm64/conf/GENERIC-NODBG > # > # GENERIC -- Custom configuration for the arm64/aarch64 > # > > include "GENERIC" > > ident GENERIC-NODBG > > makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols > > options ALT_BREAK_TO_DEBUGGER > > options KDB # Enable kernel debugger support > > # For minimum debugger support (stable branch) use: > #options KDB_TRACE # Print a stack trace for a panic > options DDB # Enable the kernel debugger > > # Extra stuff: > #options VERBOSE_SYSINIT=0 # Enable verbose sysinit messages > #options BOOTVERBOSE=1 > #options BOOTHOWTO=RB_VERBOSE > #options KTR > #options KTR_MASK=KTR_TRAP > ##options KTR_CPUMASK=0xF > #options KTR_VERBOSE > > # Disable any extra checking for. . . > nooptions DEADLKRES # Enable the deadlock resolver > nooptions INVARIANTS # Enable calls of extra sanity checking > nooptions INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS > nooptions WITNESS # Enable checks to detect deadlocks and cycles > nooptions WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed > nooptions DIAGNOSTIC > nooptions MALLOC_DEBUG_MAXZONES # Separate malloc(9) zones > nooptions BUF_TRACKING > nooptions FULL_BUF_TRACKING > Looks like the message is from a KASSERT that does nothing unless INVARIANTS/INVARIANT_SUPPORT is enabled. Unfortunately, arftifacts.ci.freebsd.org has not started getting git-based main builds yet. Normally I'd support an official debug kernel from there and see if I could repeat the problem. So I've made my own debug kernel build for things as they are in my context and it reproduced the problem: Hit [Enter] to boot immediately, or any other key for command prompt. Booting [/boot/kernel/kernel]... Using DTB provided by EFI at 0x7ef0000. EFI framebuffer information: addr, size 0x3e2fe000, 0x7e9000 dimensions 1920 x 1080 stride 1920 masks 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 ---<<BOOT>>--- panic: Too many early devmap mappings cpuid = 0 time = 1 KDB: stack backtrace: (null)() at 0xffff000000116980 pc = 0xffff000000772af4 lr = 0xffff000000116980 sp = 0xffff0000011f1320 fp = 0xffff0000011f1520 (null)() at 0xffff000000464710 pc = 0xffff000000116980 lr = 0xffff000000464710 sp = 0xffff0000011f1530 fp = 0xffff0000011f1590 (null)() at 0xffff0000004644b4 pc = 0xffff000000464710 lr = 0xffff0000004644b4 sp = 0xffff0000011f15a0 fp = 0xffff0000011f1650 (null)() at 0xffff0000007e9838 pc = 0xffff0000004644b4 lr = 0xffff0000007e9838 sp = 0xffff0000011f1660 fp = 0xffff0000011f1660 (null)() at 0xffff00000076f744 pc = 0xffff0000007e9838 lr = 0xffff00000076f744 sp = 0xffff0000011f1670 fp = 0xffff0000011f1690 (null)() at 0xffff000000782904 pc = 0xffff00000076f744 lr = 0xffff000000782904 sp = 0xffff0000011f16a0 fp = 0xffff0000011f16c0 (null)() at 0xffff0000002896b0 pc = 0xffff000000782904 lr = 0xffff0000002896b0 sp = 0xffff0000011f16d0 fp = 0xffff0000011f1790 (null)() at 0xffff0000007d9bb0 pc = 0xffff0000002896b0 lr = 0xffff0000007d9bb0 sp = 0xffff0000011f17a0 fp = 0xffff0000011f1820 (null)() at 0xffff00000028b814 pc = 0xffff0000007d9bb0 lr = 0xffff00000028b814 sp = 0xffff0000011f1830 fp = 0xffff0000011f1840 (null)() at 0xffff00000039e448 pc = 0xffff00000028b814 lr = 0xffff00000039e448 sp = 0xffff0000011f1850 fp = 0xffff0000011f1870 (null)() at 0xffff0000004af2ac pc = 0xffff00000039e448 lr = 0xffff0000004af2ac sp = 0xffff0000011f1880 fp = 0xffff0000011f18b0 (null)() at 0xffff00000077ef90 pc = 0xffff0000004af2ac lr = 0xffff00000077ef90 sp = 0xffff0000011f18c0 fp = 0xffff0000011f1a00 (null)() at 0xffff00000000089c pc = 0xffff00000077ef90 lr = 0xffff00000000089c sp = 0xffff0000011f1a10 fp = 0x0000000000000000 KDB: enter: panic [ thread pid 0 tid 0 ] Stopped at 0xffff0000004aeeb4 db> dump Cannot dump: no dump device specified. db> === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar) _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-arm To unsubscribe, send any mail to "[email protected]"