Date: Thu, 31 Dec 2020 13:35:37 -0800 From: Mark Millard <marklmi@yahoo.com> To: Brandon Bergren <bdragon@FreeBSD.org>, Justin Hibbits <chmeeedalf@gmail.com>, freebsd-ppc <freebsd-ppc@freebsd.org> Subject: CURRENT -r361544 breaks 2-socket PowerMac G4 booting: "powerpc/mmu: Convert PowerPC pmap drivers to ifunc from kobj" Message-ID: <A9CDA051-466A-4FC6-A57A-D9D751E4FD00@yahoo.com> In-Reply-To: <00423D88-0367-4220-B20A-50307DA72A81@yahoo.com> References: <00423D88-0367-4220-B20A-50307DA72A81@yahoo.com>
next in thread | previous in thread | raw e-mail | index | archive | help
[Continuation of testing kernel builds, but testing my own kernel builds for the head powerpc updates not available from artifacts.ci. Ends up: -r361544 breaks things.] On 2020-Dec-30, at 17:07, Mark Millard <marklmi at yahoo.com> wrote: > A quick summary of what I found in a crude artifact bisect is coded = into > the filenames listed later. The earliest major point is the "1 CPUs = woken" > issue from what I can tell. It still happens in -r368820 . >=20 > "2cpus_booted" means things booted and worked normally. >=20 > "1cpuwoke_" means that the following was reported: >=20 > SMP: 2 CPUs found; 2 CPUs usable; 1 CPUs woken >=20 > "_hung" means that it appeared to stop without reporting a crash. = Never > got to login prompt. >=20 > "crashes_quickly" means that the the kernel did not get very far = before > the crash happened. >=20 > -rw-r--r-- 1 root wheel 19179328 May 25 21:44:01 2020 = kernel-r361494-2cpus_booted.txz >=20 > Note: No artifact kernel.txz files for the range -r361495 .. -r361583 = . > powerpc checkins in that range include: >=20 > -r361542 : [PowerPC] Fix invalid asm in trap code (Brandon) > -r361544 : powerpc/mmu: Convert PowerPC pmap drivers to ifunc from = kobj (Justin) > -r361545 : Properly sort ifdef archs in vm_fault_soft_fast superpage = guards. (Justin) > -r361568 : [PowerPC] Fix radix crash when passing -1 from userspace = (Brandon) > -r361570 : powerpc/pmap: Remove some debug from r361544 (Justin) >=20 > -rw-r--r-- 1 root wheel 19133836 May 28 04:28:01 2020 = kernel-r361584-1cpuwoke_hung.txz > -rw-r--r-- 1 root wheel 19181596 May 29 04:42:42 2020 = kernel-r361624-1cpuwoke_hung.txz > -rw-r--r-- 1 root wheel 19254832 Jun 3 10:26:42 2020 = kernel-r361754-1cpuwoke_hung.txz > -rw-r--r-- 1 root wheel 18869112 Jun 10 16:53:57 2020 = kernel-r362034-1cpuwoke_hung.txz > -rw-r--r-- 1 root wheel 19245524 Jul 8 06:04:41 2020 = kernel-r363008-1cpuwoke_hung.txz > -rw-r--r-- 1 root wheel 19259816 Aug 16 12:03:55 2020 = kernel-r364274-1cpuwoke_hung.txz >=20 > NOTE: -r364284 is where clang 11 started and the -O newly meaning -O1 = problem started. > (Previously -O meant -O2. -O1 messed up the kernel's ifunc = handling until it > was changed to explicitly use -O2.) >=20 > -rw-r--r-- 1 root wheel 19369960 Aug 22 11:38:22 2020 = kernel-r364488-crashes_quickly.txz > -rw-r--r-- 1 root wheel 19203632 Sep 1 01:38:18 2020 = kernel-r365024-crashes_quickly.txz > -rw-r--r-- 1 root wheel 19367776 Sep 3 11:02:58 2020 = kernel-r365304-crashes_quickly.txz > -rw-r--r-- 1 root wheel 19279564 Sep 6 08:06:11 2020 = kernel-r365378-crashes_quickly.txz > -rw-r--r-- 1 root wheel 19205456 Sep 7 22:53:14 2020 = kernel-r365444-1cpuwoke_crashes_late.txz > -rw-r--r-- 1 root wheel 19446448 Sep 10 08:08:23 2020 = kernel-r365578-1cpuwoke_hung.txz > -rw-r--r-- 1 root wheel 19398268 Oct 9 06:05:48 2020 = kernel-r366598-1cpuwoke_hung.txz >=20 > Note: -r368820 still has "1cpuwoke" status and its USB is messed up = (and > it reports DMA misalignment) but it does boot. (I accessed it via = ssh.) Note: for the below kernel builds I provided a "int yydebug;" for: usr.bin/localedef/localedef.c so kernel-toolchain could build (avoiding a link failure). Other than that, the kernel builds are of pure code from git using = KERNCONF=3DGENERIC , TARGET=3Dpowerpc , TARGET_ARCH=3Dpowerpc and no other tailoring, = avoiding any questions about my personal patches contributing. -r361542 (64cc3b0c28b9) : [PowerPC] Fix invalid asm in trap code = (Brandon) Things booted and worked as expected. -r361544 (45b69dd63e84) : powerpc/mmu: Convert PowerPC pmap drivers to = ifunc from kobj (Justin) SMP: 2 CPUs found; 2 CPUs usable; 1 CPUs woken was reported and it appeared to stop without reporting a crash. Never got to login prompt. NOTE: -r361453 was on stable/ instead of head/ so the above is a works-then-fails pair with nothing between on CURRENT. =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?A9CDA051-466A-4FC6-A57A-D9D751E4FD00>