panic_write

DISCUSSION wangxing 2 participants 3 messages Sep 14, 2015 Memory technology devices (MTD)

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wangxing

author

2015-09-14 13:21 UTC #0 lore raw

Hi, I use the mtdoops get:
mtdoops:Cannot write from panic without panic_write. What the mtd partition filesystem shoud be? I try a jsff2 system, so get the warning like above.

Richard Weinberger

2015-09-14 14:24 UTC #1 lore raw

Quoted 2 lines · wangxing

Hi, I use the mtdoops get:
mtdoops:Cannot write from panic without panic_write.

Can it be that your MTD driver does not support the panic_write interface?

Signature · 2 lines

Thanks,
//richard

wangxing

author

2015-09-14 15:08 UTC #2 lore raw

Quoted 5 lines · Richard Weinberger

Quoted 2 lines · wangxing
Hi, I use the mtdoops get:
mtdoops:Cannot write from panic without panic_write.
Can it be that your MTD driver does not support the panic_write interface?

Em, as the message said, I think MTD driver does not support the panic_write interface.
1.Is a writable filesytem enough for mtdoops like jsff2?
2.Is the panic_write interface highly related to the flash device(I use the winbond 32M)? Or is it a common layer interface of mtd.