Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Salvatore Bonaccorso <carnil@debian.org>]

Hi Greg,

On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y
> and the diffstat can be found below.

Built and lightly tested, when booting I'm noticing the following in
dmesg:

[  +0.007932] ------------[ cut here ]------------
[  +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 place_entity+0x127/0x130
[  +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E) xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) >
[  +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G            E      6.12.11-rc1+ #1
[  +0.000004] Tainted: [E]=UNSIGNED_MODULE
[  +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  +0.000002] RIP: 0010:place_entity+0x127/0x130
[  +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4>
[  +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046
[  +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX: 00000000000000c2
[  +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI: 000000000078cfd5
[  +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09: 0000000000000002
[  +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12: ffff9ed83bd360c0
[  +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15: 000000000016e360
[  +0.000003] FS:  0000000000000000(0000) GS:ffff9ed83bd00000(0000) knlGS:0000000000000000
[  +0.000002] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4: 0000000000350ef0
[  +0.000003] Call Trace:
[  +0.000003]  <IRQ>
[  +0.000002]  ? place_entity+0x127/0x130
[  +0.000002]  ? __warn.cold+0x93/0xf6
[  +0.000004]  ? place_entity+0x127/0x130
[  +0.000003]  ? report_bug+0xff/0x140
[  +0.000005]  ? handle_bug+0x58/0x90
[  +0.000002]  ? exc_invalid_op+0x17/0x70
[  +0.000003]  ? asm_exc_invalid_op+0x1a/0x20
[  +0.000006]  ? place_entity+0x127/0x130
[  +0.000003]  ? place_entity+0x99/0x130
[  +0.000004]  reweight_entity+0x1af/0x1d0
[  +0.000003]  enqueue_task_fair+0x30c/0x5e0
[  +0.000005]  enqueue_task+0x35/0x150
[  +0.000004]  activate_task+0x3a/0x60
[  +0.000003]  sched_balance_rq+0x7c6/0xee0
[  +0.000008]  sched_balance_domains+0x25b/0x350
[  +0.000005]  handle_softirqs+0xcf/0x280
[  +0.000006]  __irq_exit_rcu+0x8d/0xb0
[  +0.000003]  sysvec_apic_timer_interrupt+0x71/0x90
[  +0.000003]  </IRQ>
[  +0.000002]  <TASK>
[  +0.000002]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20
[  +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0>
[  +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202
[  +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX: ffff9ed7c0647830
[  +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000000017b4
[  +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
[  +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
[  +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[  +0.000006]  default_idle+0x9/0x20
[  +0.000003]  default_idle_call+0x29/0x100
[  +0.000002]  do_idle+0x1fe/0x240
[  +0.000005]  cpu_startup_entry+0x29/0x30
[  +0.000003]  start_secondary+0x11e/0x140
[  +0.000004]  common_startup_64+0x13e/0x141
[  +0.000007]  </TASK>
[  +0.000001] ---[ end trace 0000000000000000 ]---

Not yet bisected which change causes it.

Regards,
Salvatore