58 lines
2.5 KiB
Diff
58 lines
2.5 KiB
Diff
From cafe55a662d439fb2d2d632518fc7eb2bb3d2ec1 Mon Sep 17 00:00:00 2001
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Message-Id: <cafe55a662d439fb2d2d632518fc7eb2bb3d2ec1.1601675151.git.zanussi@kernel.org>
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In-Reply-To: <5b5a156f9808b1acf1205606e03da117214549ea.1601675151.git.zanussi@kernel.org>
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References: <5b5a156f9808b1acf1205606e03da117214549ea.1601675151.git.zanussi@kernel.org>
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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Wed, 15 Apr 2015 19:00:47 +0200
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Subject: [PATCH 083/333] slub: Disable SLUB_CPU_PARTIAL
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.148-rt64.tar.xz
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|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:915
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|in_atomic(): 1, irqs_disabled(): 0, pid: 87, name: rcuop/7
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|1 lock held by rcuop/7/87:
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| #0: (rcu_callback){......}, at: [<ffffffff8112c76a>] rcu_nocb_kthread+0x1ca/0x5d0
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|Preemption disabled at:[<ffffffff811eebd9>] put_cpu_partial+0x29/0x220
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|CPU: 0 PID: 87 Comm: rcuop/7 Tainted: G W 4.0.0-rt0+ #477
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|Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
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| 000000000007a9fc ffff88013987baf8 ffffffff817441c7 0000000000000007
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| 0000000000000000 ffff88013987bb18 ffffffff810eee51 0000000000000000
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| ffff88013fc10200 ffff88013987bb48 ffffffff8174a1c4 000000000007a9fc
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|Call Trace:
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| [<ffffffff817441c7>] dump_stack+0x4f/0x90
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| [<ffffffff810eee51>] ___might_sleep+0x121/0x1b0
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| [<ffffffff8174a1c4>] rt_spin_lock+0x24/0x60
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| [<ffffffff811a689a>] __free_pages_ok+0xaa/0x540
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| [<ffffffff811a729d>] __free_pages+0x1d/0x30
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| [<ffffffff811eddd5>] __free_slab+0xc5/0x1e0
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| [<ffffffff811edf46>] free_delayed+0x56/0x70
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| [<ffffffff811eecfd>] put_cpu_partial+0x14d/0x220
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| [<ffffffff811efc98>] __slab_free+0x158/0x2c0
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| [<ffffffff811f0021>] kmem_cache_free+0x221/0x2d0
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| [<ffffffff81204d0c>] file_free_rcu+0x2c/0x40
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| [<ffffffff8112c7e3>] rcu_nocb_kthread+0x243/0x5d0
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| [<ffffffff810e951c>] kthread+0xfc/0x120
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| [<ffffffff8174abc8>] ret_from_fork+0x58/0x90
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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init/Kconfig | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/init/Kconfig b/init/Kconfig
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index 61e8b531649b..b4e88fb19c26 100644
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--- a/init/Kconfig
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+++ b/init/Kconfig
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@@ -1701,7 +1701,7 @@ config SLAB_FREELIST_HARDENED
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config SLUB_CPU_PARTIAL
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default y
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- depends on SLUB && SMP
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+ depends on SLUB && SMP && !PREEMPT_RT_FULL
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bool "SLUB per cpu partial cache"
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help
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Per cpu partial caches accellerate objects allocation and freeing
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--
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2.17.1
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