Revision c9a82bec02c339cdda99b37c5e62b3b71fc4209c authored by Vlad Buslov on 12 June 2023, 09:34:26 UTC, committed by Jakub Kicinski on 15 June 2023, 06:03:16 UTC
Mingshuai Ren reports:
When a new chain is added by using tc, one soft lockup alarm will be
generated after delete the prio 0 filter of the chain. To reproduce
the problem, perform the following steps:
(1) tc qdisc add dev eth0 root handle 1: htb default 1
(2) tc chain add dev eth0
(3) tc filter del dev eth0 chain 0 parent 1: prio 0
(4) tc filter add dev eth0 chain 0 parent 1:
Fix the issue by accounting for additional reference to chains that are
explicitly created by RTM_NEWCHAIN message as opposed to implicitly by
RTM_NEWTFILTER message.
Fixes: 726d061286ce ("net: sched: prevent insertion of new classifiers during chain flush")
Reported-by: Mingshuai Ren <renmingshuai@huawei.com>
Closes: https://lore.kernel.org/lkml/87legswvi3.fsf@nvidia.com/T/
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Link: https://lore.kernel.org/r/20230612093426.2867183-1-vladbu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 parent 24b454b
| File | Mode | Size |
|---|---|---|
| governors | ||
| Kconfig | -rw-r--r-- | 2.3 KB |
| Kconfig.arm | -rw-r--r-- | 4.4 KB |
| Kconfig.mips | -rw-r--r-- | 658 bytes |
| Kconfig.powerpc | -rw-r--r-- | 520 bytes |
| Kconfig.riscv | -rw-r--r-- | 438 bytes |
| Makefile | -rw-r--r-- | 1.7 KB |
| coupled.c | -rw-r--r-- | 25.2 KB |
| cpuidle-arm.c | -rw-r--r-- | 4.0 KB |
| cpuidle-at91.c | -rw-r--r-- | 1.5 KB |
| cpuidle-big_little.c | -rw-r--r-- | 6.7 KB |
| cpuidle-calxeda.c | -rw-r--r-- | 1.6 KB |
| cpuidle-clps711x.c | -rw-r--r-- | 1.2 KB |
| cpuidle-cps.c | -rw-r--r-- | 4.2 KB |
| cpuidle-exynos.c | -rw-r--r-- | 3.3 KB |
| cpuidle-haltpoll.c | -rw-r--r-- | 3.1 KB |
| cpuidle-kirkwood.c | -rw-r--r-- | 2.0 KB |
| cpuidle-mvebu-v7.c | -rw-r--r-- | 3.5 KB |
| cpuidle-powernv.c | -rw-r--r-- | 10.3 KB |
| cpuidle-psci-domain.c | -rw-r--r-- | 4.7 KB |
| cpuidle-psci.c | -rw-r--r-- | 10.1 KB |
| cpuidle-psci.h | -rw-r--r-- | 672 bytes |
| cpuidle-pseries.c | -rw-r--r-- | 12.5 KB |
| cpuidle-qcom-spm.c | -rw-r--r-- | 4.5 KB |
| cpuidle-riscv-sbi.c | -rw-r--r-- | 14.2 KB |
| cpuidle-tegra.c | -rw-r--r-- | 9.4 KB |
| cpuidle-ux500.c | -rw-r--r-- | 3.0 KB |
| cpuidle-zynq.c | -rw-r--r-- | 1.5 KB |
| cpuidle.c | -rw-r--r-- | 19.4 KB |
| cpuidle.h | -rw-r--r-- | 2.2 KB |
| driver.c | -rw-r--r-- | 9.8 KB |
| dt_idle_genpd.c | -rw-r--r-- | 3.6 KB |
| dt_idle_genpd.h | -rw-r--r-- | 990 bytes |
| dt_idle_states.c | -rw-r--r-- | 6.3 KB |
| dt_idle_states.h | -rw-r--r-- | 216 bytes |
| governor.c | -rw-r--r-- | 2.7 KB |
| poll_state.c | -rw-r--r-- | 1.3 KB |
| sysfs.c | -rw-r--r-- | 19.2 KB |
Computing file changes ...
