diff options
Diffstat (limited to 'debian/patches-rt/0083-slub-Disable-SLUB_CPU_PARTIAL.patch')
| -rw-r--r-- | debian/patches-rt/0083-slub-Disable-SLUB_CPU_PARTIAL.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/debian/patches-rt/0083-slub-Disable-SLUB_CPU_PARTIAL.patch b/debian/patches-rt/0083-slub-Disable-SLUB_CPU_PARTIAL.patch new file mode 100644 index 000000000..12eef9aa5 --- /dev/null +++ b/debian/patches-rt/0083-slub-Disable-SLUB_CPU_PARTIAL.patch @@ -0,0 +1,54 @@ +From 1a6400867d9fa3d3e0c8d816c8ae5bb10c202e8a Mon Sep 17 00:00:00 2001 +From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +Date: Wed, 15 Apr 2015 19:00:47 +0200 +Subject: [PATCH 083/347] slub: Disable SLUB_CPU_PARTIAL +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz + +|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:915 +|in_atomic(): 1, irqs_disabled(): 0, pid: 87, name: rcuop/7 +|1 lock held by rcuop/7/87: +| #0: (rcu_callback){......}, at: [<ffffffff8112c76a>] rcu_nocb_kthread+0x1ca/0x5d0 +|Preemption disabled at:[<ffffffff811eebd9>] put_cpu_partial+0x29/0x220 +| +|CPU: 0 PID: 87 Comm: rcuop/7 Tainted: G W 4.0.0-rt0+ #477 +|Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 +| 000000000007a9fc ffff88013987baf8 ffffffff817441c7 0000000000000007 +| 0000000000000000 ffff88013987bb18 ffffffff810eee51 0000000000000000 +| ffff88013fc10200 ffff88013987bb48 ffffffff8174a1c4 000000000007a9fc +|Call Trace: +| [<ffffffff817441c7>] dump_stack+0x4f/0x90 +| [<ffffffff810eee51>] ___might_sleep+0x121/0x1b0 +| [<ffffffff8174a1c4>] rt_spin_lock+0x24/0x60 +| [<ffffffff811a689a>] __free_pages_ok+0xaa/0x540 +| [<ffffffff811a729d>] __free_pages+0x1d/0x30 +| [<ffffffff811eddd5>] __free_slab+0xc5/0x1e0 +| [<ffffffff811edf46>] free_delayed+0x56/0x70 +| [<ffffffff811eecfd>] put_cpu_partial+0x14d/0x220 +| [<ffffffff811efc98>] __slab_free+0x158/0x2c0 +| [<ffffffff811f0021>] kmem_cache_free+0x221/0x2d0 +| [<ffffffff81204d0c>] file_free_rcu+0x2c/0x40 +| [<ffffffff8112c7e3>] rcu_nocb_kthread+0x243/0x5d0 +| [<ffffffff810e951c>] kthread+0xfc/0x120 +| [<ffffffff8174abc8>] ret_from_fork+0x58/0x90 + +Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> +--- + init/Kconfig | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/init/Kconfig b/init/Kconfig +index 1793e8bd71ef..0c912e74ee40 100644 +--- a/init/Kconfig ++++ b/init/Kconfig +@@ -1714,7 +1714,7 @@ config SLAB_FREELIST_HARDENED + + config SLUB_CPU_PARTIAL + default y +- depends on SLUB && SMP ++ depends on SLUB && SMP && !PREEMPT_RT_FULL + bool "SLUB per cpu partial cache" + help + Per cpu partial caches accellerate objects allocation and freeing +-- +2.36.1 + |