wishlist:david
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wishlist:david [2017/03/27 16:09] dcvmoole not to forget: pselect(2) |
wishlist:david [2017/04/09 12:28] dcvmoole another new todo item |
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| * problem: it is not possible to mount RMIB subtrees using a name only (e.g. minix.lwip) | * problem: it is not possible to mount RMIB subtrees using a name only (e.g. minix.lwip) | ||
| * problem: it is currently possible to mess up the MIB tree with bad name+id combos in RMIB mount requests | * problem: it is currently possible to mess up the MIB tree with bad name+id combos in RMIB mount requests | ||
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| + | === Disallow killing processes in an uninterruptible system call === | ||
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| + | * reason: processes may currently be terminated while in an uninterruptible system call, possibly triggering poorly-tested scenarios in other services (safecopy failures, etc) | ||
| + | * complication: this will require changes to the PM signal state machine, with subtle side effects | ||
| + | * complication: involving all user-facing system services in exit notification is a performance problem | ||
| + | * note: the most obvious solution would be kernel support for notification (to PM) when a process system call has completed, comparable to SIGNDELAY, and a PREEXIT process state in PM | ||
| + | * note: ideally the same idea would be applied to signal handler invocation, because the current approach makes dangerous and already-incorrect(?) assumptions about "retreg" there | ||
| === Add support for pselect(2) === | === Add support for pselect(2) === | ||
wishlist/david.txt · Last modified: 2017/10/11 18:13 by dcvmoole
