0c59b3c325
with procfs's cmdline - from the PR: The cmdline implementation in procfs is bogus. It's possible that part of the fix is a workaround of a UVM problem - that is, when (internally) accessing the top of the process VM (the end of the args) a request for I/0 of a PAGE_SIZE'd block starting at less than a PAGE_SIZE from the end of the mem space returns EINVAL rather than the data that is available. Whether this is a bug in UVM or not depends upon how it is defined to work, and I was unable to determine that. (Simon Burge found that problem, and provided the basis of the workaround/fix). Then, the cmdline function is unable to read more than one page of args, and a good thing too, as the way it is written attempting to get more than that would reference into lala land. And, on an attempt to read a lot of data when the above is fixed, most of the data won't be returned, only the final block of any read. Tested on alpha, pmax, i386 and sparc. |
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| .. | ||
| deadfs | ||
| fdesc | ||
| fifofs | ||
| genfs | ||
| kernfs | ||
| nullfs | ||
| overlay | ||
| portal | ||
| procfs | ||
| specfs | ||
| syncfs | ||
| umapfs | ||
| union | ||
| Makefile | ||