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+++ b/user/Maksym_Planeta.mdwn
@@ -43,8 +43,15 @@ Probably pager_request shouldn't be stored because request may arrive from diffe
TODO: During execution tmpfs hangs in random places. The most possible is variant is deadlocks,
because nothing was undertaken for thread safety.
+> Is this only a problem in your new *own pager* implementation, or also in the
+> existing tmpfs implementation? --[[tschwinge]]
+
TODO: Make tmpfs use not more space than it was allowed.
+> Is this only a problem in your new *own pager* implementation, or also in the
+> existing tmpfs implementation? It is supposed to already obey this limit.
+> --[[tschwinge]]
+
### Make links work
Symlinks behavior: [[links|http://www.bddebian.com:8888/~hurd-web/user/Maksym_Planeta/#links81111]]
@@ -57,8 +64,21 @@ Probably pager_request shouldn't be stored because request may arrive from diffe
TODO: Find out why and correct this.
+> This may perhaps be the standard translator
+> shutdown-after-a-period-of-inactivity functionality? This is of course not
+> valid in the tmpfs case, as all its state (file system content) is not stored
+> on any non-volatile backend. Can this auto-shutdown functionality be
+> disabled (in [[hurd/libdiskfs]], perhaps? See `libdiskfs/init-first.c`, the
+> call to `ports_manage_port_operations_multithread`, the `global_timeout`
+> paramenter (see the [[hurd/reference_manual]]) (here: `server_timeout`).
+> Probably this should be set to `0` in tmpfs to disable timing out?
+> --[[tschwinge]]
+
### Passive translator doesn't work
+> Must be some bug: `diskfs_set_translator` is implemented in `node.c`, so this
+> is supposed to work. --[[tschwinge]]
+
#Chalanges
Translators vs FUSE:
@@ -86,9 +106,20 @@ For debugging ext2fs:
#Questions
1. What are sequence numbers? What are they used for?
+
+> See [[microkernel/mach/ipc/sequence_numbering]]. --[[tschwinge]]
+
2. Is there any way to debug mach-defpager? When I set breakpoint to any function in it, pager never breaks.
+
+> Is that still an unresolved problem? If not, what was the problem? --[[tschwinge]]
+
3. Is it normal that defpager panics and breaks on any wrong data?
+> No server must ever panic (or reach any other invalid state), whichever input
+> data it receives from untrusted sources (which may include every possible
+> source). All input data must be checked for validity before use; anything
+> else is a bug. --[[tschwinge]]
+
#Links
1. [[Cthreads manuals|http://www.cc.gatech.edu/classes/cs6432_99_winter/threads_man/]]