Date: Thu, 11 Jun 2020 20:47:06 -0700 From: Mark Millard <marklmi@yahoo.com> To: Justin Hibbits <chmeeedalf@gmail.com> Cc: "vangyzen@freebsd.org" <vangyzen@FreeBSD.org>, svn-src-head@freebsd.org, FreeBSD Current <freebsd-current@freebsd.org>, FreeBSD Hackers <freebsd-hackers@freebsd.org>, FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>, Brandon Bergren <bdragon@FreeBSD.org> Subject: Re: svn commit: r360233 - in head: contrib/jemalloc . . . : This partially breaks a 2-socket 32-bit powerpc (old PowerMac G4) based on head -r360311 Message-ID: <3605089E-7B5D-4FBA-B0D1-14B789BDF09B@yahoo.com> In-Reply-To: <1EDCA498-0B67-4374-B7CA-1ECDA8EE32AD@yahoo.com> References: <C24EE1A1-FAED-42C2-8204-CA7B1D20A369@yahoo.com> <695E6836-F860-4557-B7DE-CC1EDB347F18@yahoo.com> <DCABCD83-27B0-4F2D-9410-69102294A98E@yahoo.com> <121B9B09-141B-4DC3-918B-1E7CFB99E779@yahoo.com> <8AAB0462-3FA8-490C-8D8D-7C15B1C9E2DE@yahoo.com> <18E62746-80DB-4195-977D-4FF32D0129EE@yahoo.com> <F5953A6B-56CE-4D1C-8C18-58D44B639881@yahoo.com> <D0C483E5-3F6A-4816-A6BA-3D2C82C24F8E@yahoo.com> <C440956F-139E-4EF7-A68E-FE35D9934BD3@yahoo.com> <9562EEE4-62EF-4164-91C0-948CC0432984@yahoo.com> <9B68839B-AEC8-43EE-B3B6-B696A4A57DAE@yahoo.com> <359C9C7D-4106-42B5-AAB5-08EF995B8100@yahoo.com> <20200513105632.06db9e21@titan.knownspace> <B1225914-43BC-44EF-A73E-D06B890229C6@yahoo.com> <20200611155545.55526f7c@ralga.knownspace> <5542B85D-1C3A-41D8-98CE-3C02E990C3EB@yahoo.com> <20200611164216.47f82775@ralga.knownspace> <DEA9A860-5DEE-49EE-97F1-DBDB39D5C0A3@yahoo.com> <DCB0BC72-1666-49F3-A838-B2A0D653A0C2@yahoo.com> <20200611212532.59f677be@ralga.knownspace> <1EDCA498-0B67-4374-B7CA-1ECDA8EE32AD@yahoo.com>
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[Just a better panic backtrace text copy.]
On 2020-Jun-11, at 20:29, Mark Millard <marklmi at yahoo.com> wrote:
> On 2020-Jun-11, at 19:25, Justin Hibbits <chmeeedalf at gmail.com> =
wrote:
>=20
>> On Thu, 11 Jun 2020 17:30:24 -0700
>> Mark Millard <marklmi@yahoo.com> wrote:
>>=20
>>> On 2020-Jun-11, at 16:49, Mark Millard <marklmi at yahoo.com> wrote:
>>>=20
>>>> On 2020-Jun-11, at 14:42, Justin Hibbits <chmeeedalf at gmail.com>
>>>> wrote:
>>>> . . .
>>=20
>> Can you try moving the assignment to 'm' to right below the
>> moea_pte_change() call?
>=20
> Panics during boot. svnlite diff shown later.
>=20
> That change got me a panic just after the lines about ada0
> and cd0 details. (Unknown what internal stage.) Hand
> translated from a picture of the screen:
>=20
> panic: . . .
I forgot that 32-bit powerpc dump does partially work
for PowerMacs (or at least my context). After booting
with a non-debug kernel I've kept around, looking at
/var/crash/vmcore.3 shows:
panic: vm_page_free_prep: mapping flags set in page 0xd032a078
cpuid =3D 1
time =3D 1591931757
KDB: stack backtrace:
0xd2dc4340: at kdb_backtrace+0x64
0xd2dc43a0: at vpanic+0x208
0xd2dc4410: at panic+0x64
0xd2dc4450: at vm_page_free_prep+0x348
0xd2dc4470: at vm_page_free_toq+0x3c
0xd2dc4490: at vm_page_free+0x20
0xd2dc44a0: at vm_object_collapse+0x4ac
0xd2dc4510: at vm_object_deallocate+0x430
0xd2dc4550: at vm_map_process_deferred+0xec
0xd2dc4570: at vm_map_remove+0x12c
0xd2dc4590: at exec_new_vmspace+0x20c
0xd2dc45f0: at exec_elf32_imgact+0xa70
0xd2dc46a0: at kern_execve+0x600
0xd2dc4910: at sys_execve+0x84
0xd2dc4970: at trap+0x748
0xd2dc4a10: at powerpc_interrupt+0x178
0xd2dc4a40: user SC trap by 0x100d71f8: srr1=3D0xf032
r1=3D0xffffd810 cr=3D0x82000280 xer=3D0 ctr=3D0x10173810 =
frame=3D0xd2dc4a48
KDB: enter: panic
/wrkdirs/usr/ports/devel/gdb/work-py37/gdb-9.1/gdb/inferior.c:283: =
internal-error: struct inferior *find_inferior_pid(int): Assertion `pid =
!=3D 0' failed.
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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