Re: [PATCH 7.3 000/547] 7.3.2-rc1 review

[Ronald Warsow]

Hi

kernel build / boot test on x86_64 (11th Gen Intel Core i5-11400).


not bisected, just "visual grepped" on the linux-stable-rc.git log !

I need to revert:

"x86/mm/pat: Fix effective RW computation in lookup_address_in_pgd_attr()"

commit 7f85bfd44bcccf315eb30145e9c2a2fd9f6f8a87


otherwise I get:

[    0.105981] x86/fpu: Enabled xstate features 0x2ff, context size is 
2568 bytes, using 'compacted' format.
[    0.108036] ------------[ cut here ]------------
[    0.108037] CPA detected W^X violation: 8000000000000123 -> 
0000000000000123 range: 0xffffffffc0400000 - 0xffffffffc0400fff PFN 101000
[    0.108039] WARNING: arch/x86/mm/pat/set_memory.c:722 at 
__change_page_attr_set_clr+0xc4c/0x11f0, CPU#0: swapper/0/0
[    0.108043] Modules linked in:
[    0.108045] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 
7.3.2-rc1_MY-g75eaee7a6465 #1 PREEMPT(lazy)
[    0.108047] Hardware name: ASUS System Product Name/ROG STRIX B560-G 
GAMING WIFI, BIOS 2501 05/22/2026
[    0.108048] RIP: 0010:__change_page_attr_set_clr+0xc65/0x11f0
[    0.108050] Code: 7c 24 4c 00 0f 85 e9 03 00 00 48 8d 3d a4 78 01 03 
48 8b 34 24 4d 89 e9 4d 8d 84 24 ff 0f 00 00 4c 89 e1 48 89 c2 48 89 04 
24 <67> 48 0f b9 3a 48 8b 04 24 48 ba 00 f0 ff ff ff ff 0f 00 48 21 d3
[    0.108052] RSP: 0000:ffffffff85203c40 EFLAGS: 00010246
[    0.108053] RAX: 0000000000000123 RBX: 8000000101000123 RCX: 
ffffffffc0400000
[    0.108054] RDX: 0000000000000123 RSI: 8000000000000123 RDI: 
ffffffff857c8f70
[    0.108055] RBP: 8000000101000123 R08: ffffffffc0400fff R09: 
0000000000101000
[    0.108056] R10: 0000000000000123 R11: 0000000000000000 R12: 
ffffffffc0400000
[    0.108056] R13: 0000000000101000 R14: 000ffffffffff000 R15: 
ffffffff85203d40
[    0.108057] FS:  0000000000000000(0000) GS:ffff97940910f000(0000) 
knlGS:0000000000000000
[    0.108058] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.108059] CR2: ffff979067570000 CR3: 0000000126238001 CR4: 
0000000000770ef0
[    0.108060] PKRU: 55555554
[    0.108061] Call Trace:
[    0.108062]  <TASK>
[    0.108064]  ? _vm_unmap_aliases+0x229/0x2a0
[    0.108067]  change_page_attr_set_clr+0x154/0x5a0
[    0.108070]  ? perf_get_hw_event_config+0x28/0x30
[    0.108072]  set_memory_x+0x39/0x50
[    0.108073]  apply_retpolines+0x695/0x710
[    0.108077]  ? perf_get_hw_event_config+0x28/0x30
[    0.108078]  ? __pfx_x86_pmu_filter+0x7/0x10
[    0.108080]  ? perf_get_hw_event_config+0x2d/0x30
[    0.108081]  alternative_instructions+0x37/0xc0
[    0.108086]  arch_cpu_finalize_init+0x11b/0x170
[    0.108087]  start_kernel+0x9ae/0xa50
[    0.108089]  x86_64_start_reservations+0x24/0x30
[    0.108091]  x86_64_start_kernel+0x121/0x130
[    0.108092]  common_startup_64+0x13e/0x158
[    0.108095]  </TASK>
[    0.108095] ---[ end trace 0000000000000000 ]---


Thanks

Tested-by: Ronald Warsow <rwarsow@xxxxxx>