Subject: [Bug 215389] pagealloc: memory corruption at building glibc-2.33 and running its' testsuite

From: [email-masked]
Date: Tue, 23 May 2023 21:17:56 +0000

https://bugzilla.kernel.org/show_bug.cgi?id=215389

--- Comment #39 from Erhard F. ([email-masked]) ---
No change with 6.4-rc4, only additional data "page_type: 0xffffffff()" is
shown:

[...]
pagealloc: memory corruption
06fe3258: 00 00 00 00                                      ....
CPU: 1 PID: 397 Comm: stress Tainted: G        W       T 
6.4.0-rc3-PMacG4-dirty #1
Hardware name: PowerMac3,6 7455 0x80010303 PowerMac
Call Trace:
[f2a35c70] [c0eea17c] dump_stack_lvl+0x60/0xa4 (unreliable)
[f2a35c90] [c0eea1d8] dump_stack+0x18/0x30
[f2a35ca0] [c0360f90] __kernel_unpoison_pages+0x234/0x288
[f2a35ce0] [c033fdf4] get_page_from_freelist+0xd90/0x10d8
[f2a35d90] [c0340978] __alloc_pages+0x138/0xdd8
[f2a35e40] [c0315b80] handle_mm_fault+0xab8/0x15e0
[f2a35ed0] [c003a3d4] ___do_page_fault+0x320/0x8c4
[f2a35f10] [c003abe0] do_page_fault+0x28/0x80
[f2a35f30] [c000433c] DataAccess_virt+0x124/0x17c
--- interrupt: 300 at 0xaf30d8
NIP:  00af30d8 LR: 00af30b4 CTR: 00000000
REGS: f2a35f40 TRAP: 0300   Tainted: G        W       T  
(6.4.0-rc3-PMacG4-dirty)
MSR:  0000d032 <EE,PR,ME,IR,DR,RI>  CR: 20882464  XER: 00000000
DAR: 8f7a3010 DSISR: 42000000 
GPR00: 00af30b4 af9c9cb0 a7cd2740 6e97d010 39300000 20224462 00000000 00a10264 
GPR08: 20e27000 20e26000 00000000 4062ceda 20882462 00b0fff4 00000000 00000000 
GPR16: 00000000 00000002 00000000 0000005a 40802462 80002462 40002462 00b100a4 
GPR24: ffffffff ffffffff 39300000 00000000 00000000 6e97d010 00b17d64 00001000 
NIP [00af30d8] 0xaf30d8
LR [00af30b4] 0xaf30b4
--- interrupt: 300
page:e314e657 refcount:1 mapcount:0 mapping:00000000 index:0x1 pfn:0x31065
flags: 0x80000000(zone=2)
page_type: 0xffffffff()
raw: 80000000 00000100 00000122 00000000 00000001 00000000 ffffffff 00000001
raw: 00000000
page dumped because: pagealloc: corrupted page details

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