From: Pierre Gondois <pierre.gondois@arm.com>
To: Mike Galbraith <efault@gmx.de>, linux-rt-users@vger.kernel.org
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: v6.1-rt4 rpi4 boot time atomic_sleep splat
Date: Mon, 28 Nov 2022 09:40:48 +0100 [thread overview]
Message-ID: <859aadda-c971-d16b-44a1-4e15ef49bf8b@arm.com> (raw)
In-Reply-To: <1806ff76592576c6e6dba91f09ce661b7c75a9a9.camel@gmx.de>
Hello Mike,
There is a patch-set currently ongoing aiming to solve this at:
https://lore.kernel.org/all/20221121171217.3581004-1-pierre.gondois@arm.com/
Regards,
Pierre
On 11/27/22 06:10, Mike Galbraith wrote:
> Sole splat seen during brief master usability test drive.
>
> (older rpi kernel is still way better idea, but it's improving.. boots,
> runs and hdmi audio started working)
>
> [ 0.007076] smp: Bringing up secondary CPUs ...
> [ 0.008304] Detected PIPT I-cache on CPU1
> [ 0.008377] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:46
> [ 0.008384] in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 0, name: swapper/1
> [ 0.008391] preempt_count: 1, expected: 0
> [ 0.008396] RCU nest depth: 1, expected: 1
> [ 0.008400] Preemption disabled at:
> [ 0.008403] [<ffffffd3244ca8e0>] migrate_enable+0x40/0x170
> [ 0.008425] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.1.0.g0b1dcc2-rt4 #25
> [ 0.008437] Hardware name: Raspberry Pi 4 Model B Rev 1.4 (DT)
> [ 0.008442] Call trace:
> [ 0.008445] dump_backtrace.part.0+0xe8/0xf4
> [ 0.008455] show_stack+0x20/0x50
> [ 0.008463] dump_stack_lvl+0x64/0x80
> [ 0.008477] dump_stack+0x18/0x34
> [ 0.008488] __might_resched+0x15c/0x1c0
> [ 0.008502] rt_spin_lock+0x38/0xd0
> [ 0.008514] rmqueue_bulk+0x68/0x850
> [ 0.008529] get_page_from_freelist+0xbe4/0xfa0
> [ 0.008542] __alloc_pages+0x14c/0xf70
> [ 0.008554] new_slab+0x2f0/0x374
> [ 0.008569] ___slab_alloc+0x5f0/0xbcc
> [ 0.008584] __kmem_cache_alloc_node+0xd0/0x380
> [ 0.008591] __kmalloc+0x6c/0x1c0
> [ 0.008603] detect_cache_attributes+0x448/0x564
> [ 0.008620] update_siblings_masks+0x30/0x304
> [ 0.008631] store_cpu_topology+0x48/0x60
> [ 0.008640] secondary_start_kernel+0xc8/0x144
> [ 0.008656] __secondary_switched+0xb0/0xb4
> [ 0.008752] CPU1: Booted secondary processor 0x0000000001 [0x410fd083]
> [ 0.010180] Detected PIPT I-cache on CPU2
> [ 0.010300] CPU2: Booted secondary processor 0x0000000002 [0x410fd083]
> [ 0.011522] Detected PIPT I-cache on CPU3
> [ 0.011649] CPU3: Booted secondary processor 0x0000000003 [0x410fd083]
> [ 0.011768] smp: Brought up 1 node, 4 CPUs
>
next prev parent reply other threads:[~2022-11-28 8:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-27 5:10 v6.1-rt4 rpi4 boot time atomic_sleep splat Mike Galbraith
2022-11-28 8:40 ` Pierre Gondois [this message]
2022-11-28 8:42 ` Sebastian Andrzej Siewior
2023-05-31 8:43 He Zhe
2023-06-05 9:59 ` Pierre Gondois
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