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SubjectRe: [dm-crypt] INFO: task mount:11202 blocked for more than 120 seconds
On Mon, Mar 17, 2008 at 05:36:09PM +0000, Alasdair G Kergon wrote:
> Latest version for everyone to try:
> From: Milan Broz <>
> Fix regression in dm-crypt introduced in commit
> 3a7f6c990ad04e6f576a159876c602d14d6f7fef
> (dm crypt: use async crypto).
> If write requests need to be split into pieces, the code must not
> process them in parallel because the crypto context cannot be shared.
> So there can be parallel crypto operations on one part of the write,
> but only one write bio can be processed at a time.

Could you explain this part please? Crypto tfm objects are meant
to be reentrant, synchronous or not.

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