I have had similar problems with ipw3945 causing random crashes as described above. I haven't had any problems since switching from the NEWER 0.6.5-0ubuntu16 to the PPA repository's 0.6.5-0ubuntu16~ppa3, which according to the changelogs has a different set of patches applied. As far as my machine goes, moving those patches to a new release is warranted. Thanks.
Confirm ~ppa3 solves this problem for me as well.
I have had similar problems with ipw3945 causing random crashes as described above. I haven't had any problems since switching from the NEWER 0.6.5-0ubuntu16 to the PPA repository's 0.6.5-0ubuntu16 ~ppa3, which according to the changelogs has a different set of patches applied. As far as my machine goes, moving those patches to a new release is warranted. Thanks.