From: Zhihao Cheng <chengzhihao1@huawei.com>
To: ZhaoLong Wang <wangzhaolong1@huawei.com>,
<miquel.raynal@bootlin.com>, <richard@nod.at>, <vigneshr@ti.com>
Cc: <linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
<yi.zhang@huawei.com>, <yangerkun@huawei.com>
Subject: Re: [PATCH v3 1/5] ubi: Use the fault injection framework to enhance the fault injection capability
Date: Fri, 20 Oct 2023 16:55:33 +0800 [thread overview]
Message-ID: <e6e151fc-3515-8b21-e7b0-cc3d9148a696@huawei.com> (raw)
In-Reply-To: <20231020064803.643399-2-wangzhaolong1@huawei.com>
在 2023/10/20 14:47, ZhaoLong Wang 写道:
> To make debug parameters configurable at run time, use the
> fault injection framework to reconstruct the debugfs interface,
> and retain the legacy fault injection interface.
>
> Now, the file emulate_failures and fault_attr files control whether
> to enable fault emmulation.
>
> The file emulate_failures receives a mask that controls type and
> process of fault injection. Generally, for ease of use, you can
> directly enter a mask with all 1s.
>
> echo 0xffff > /sys/kernel/debug/ubi/ubi0/emulate_failures
>
> And you need to configure other fault-injection capabilities for
> testing purpose:
>
> echo 100 > /sys/kernel/debug/ubi/fault_inject/emulate_power_cut/probability
> echo 15 > /sys/kernel/debug/ubi/fault_inject/emulate_power_cut/space
> echo 2 > /sys/kernel/debug/ubi/fault_inject/emulate_power_cut/verbose
> echo -1 > /sys/kernel/debug/ubi/fault_inject/emulate_power_cut/times
>
> The CONFIG_MTD_UBI_FAULT_INJECTION to enable the Fault Injection is
> added to kconfig.
>
> Signed-off-by: ZhaoLong Wang <wangzhaolong1@huawei.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
next prev parent reply other threads:[~2023-10-20 8:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-20 6:47 [PATCH v3 0/5] ubi: Enhanced fault injection capability for the UBI driver ZhaoLong Wang
2023-10-20 6:47 ` [PATCH v3 1/5] ubi: Use the fault injection framework to enhance the fault injection capability ZhaoLong Wang
2023-10-20 8:55 ` Zhihao Cheng [this message]
2023-10-20 6:48 ` [PATCH v3 2/5] ubi: Split io_failures into write_failure and erase_failure ZhaoLong Wang
2023-10-20 6:48 ` [PATCH v3 3/5] ubi: Add six fault injection type for testing ZhaoLong Wang
2023-10-20 9:09 ` Zhihao Cheng
2023-10-20 6:48 ` [PATCH v3 4/5] ubi: Reserve sufficient buffer length for the input mask ZhaoLong Wang
2023-10-20 6:48 ` [PATCH v3 5/5] mtd: Add several functions to the fail_function list ZhaoLong Wang
2023-10-20 9:11 ` Zhihao Cheng
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