Opened 4 years ago

Closed 4 years ago

#16725 closed defect (fixed)

New "low_mem" parameter breaks big images in brcm47xx

Reported by: anonymous Owned by: developers
Priority: high Milestone: Chaos Calmer 15.05
Component: base system Version: Trunk


After adding the new parameter:

"low_mem" (with 64K default)

"big" images of around 7MB are broken and no longer build as
squashfs-images, because of the new default-size of 64K.

With the old default with "256k" this images still build without
any problems.

A 7MB squashfs image has after the firstrun still a 1,4MB feee jffs2 partition.

So the 64K parameter is a little useless right now, because it produces to big images, instead smaller images

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Change History (1)

comment:1 Changed 4 years ago by nbd

  • Resolution set to fixed
  • Status changed from new to closed

The feature flag has been moved to the newly added 'legacy' subtarget in r41049
The block size is a tradeoff of memory usage vs. filesystem size. The 256k blocksize reduces ROM usage, but makes the system completely unusable on devices with little RAM.
Now that low-memory systems are handled by a separate subtarget, it is no longer necessary to carry the flag for the main target.

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