Messages in this thread | | | Subject | Re: [PATCH v4 1/5] ubi: Use the fault injection framework to enhance the fault injection capability | From | Zhihao Cheng <> | Date | Fri, 3 Nov 2023 19:33:46 +0800 |
| |
在 2023/11/3 14:55, 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> > --- > drivers/mtd/ubi/Kconfig | 9 +++ > drivers/mtd/ubi/debug.c | 68 +++++++++++++++++-- > drivers/mtd/ubi/debug.h | 142 +++++++++++++++++++++++++++++++++------- > drivers/mtd/ubi/io.c | 10 ++- > drivers/mtd/ubi/ubi.h | 15 ++--- > 5 files changed, 202 insertions(+), 42 deletions(-) > > Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
| |