RE: eval_thunk_selector: strange selectee 29
For the Haskell program from hell (it kills ghc-6.01 on OpenBSD 3.4, hugs on MacOS X and hugs on EPOC) It's a translation of the (in)famous jpeg.gs script - but I'm yet to see whether it works or not, and how fast. But it does compile cleanly. I can send you a sample JPEG that causes the crash, but I think any image will do. I believe this bug was fixed in GHC 6.2. Could you try that version and let us know if it helps? Cheers, Simon ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
RE: eval_thunk_selector: strange selectee 29
On Mon, 10 Nov 2003, Simon Marlow wrote: I can confirm that this happens on my solaris machine as well. Moreover it crashes my computer! I have seen the same crash when working with the ffi on solaris but haven't been able to reproduce it. What happens is this: In the window I'm running ghci/my ffi application gets filled with prompts. I'm guessing something has started forking like crazy. Anyway this eats up all the computer resources and all I can do is restart the computer. It would be Very Nice if you could fix the crashing bug as this sometimes crashes programs running for example wxHaskell. I get very uneasy as soon as I start to program with the ffi. We've fixed the strange selectee 29 bug, but I doubt that could be the cause of your infinite forking behaviour. If you manage to get a repeatable example, we can look into it. Well, if the infinite forking behaviour doesn't depend on the strange selectee 29 bug then you should be able to use the same program to provoke ghci to start forking. Apart from that I attach a small program which exibits the forking behaviour. It's a wxHaskell application which might make things a little tricky, but the program itself is just hello world where I forget to supply the start function in the beginning. I perhaps should repeat again that the bug is not wxHaskell specific but the problem seems to be with the ffi as we've encountered the problem before when using the ffi. To prevent it crashing your machine, you should set a limit on the number of processes creatable by each user. To do it locally for yourself, use the 'ulimit' shell command. Most OSs have a way to set this globally or on a user-by-user basis too (can't remember exactly how Solaris does it, sorry). Hmmm, the problem is that I don't know either. ulimit doesn't do the job anyway. I've managed to close the window by pressing Ctrl-D in it now, which is nice because I don't have to restart my computer :) /Josef module Bug where import Graphics.UI.WX main = -- start $ do win - frame [text := Hello World!] qbutton - button win [text := Quit, on command := close win] set win [layout := widget qbutton] ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
RE: eval_thunk_selector: strange selectee 29
I can confirm that this happens on my solaris machine as well. Moreover it crashes my computer! I have seen the same crash when working with the ffi on solaris but haven't been able to reproduce it. What happens is this: In the window I'm running ghci/my ffi application gets filled with prompts. I'm guessing something has started forking like crazy. Anyway this eats up all the computer resources and all I can do is restart the computer. It would be Very Nice if you could fix the crashing bug as this sometimes crashes programs running for example wxHaskell. I get very uneasy as soon as I start to program with the ffi. We've fixed the strange selectee 29 bug, but I doubt that could be the cause of your infinite forking behaviour. If you manage to get a repeatable example, we can look into it. To prevent it crashing your machine, you should set a limit on the number of processes creatable by each user. To do it locally for yourself, use the 'ulimit' shell command. Most OSs have a way to set this globally or on a user-by-user basis too (can't remember exactly how Solaris does it, sorry). Cheers, Simon ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: eval_thunk_selector: strange selectee 29
I can confirm that this happens on my solaris machine as well. Moreover it
crashes my computer! I have seen the same crash when working with the ffi
on solaris but haven't been able to reproduce it. What happens is this:
In the window I'm running ghci/my ffi application gets filled with
prompts. I'm guessing something has started forking like crazy. Anyway
this eats up all the computer resources and all I can do is restart the
computer.
It would be Very Nice if you could fix the crashing bug as this sometimes
crashes programs running for example wxHaskell. I get very uneasy as soon
as I start to program with the ffi.
Cheers,
/Josef
On Wed, 5 Nov 2003, Yitzchak Gale wrote:
Hi,
As requested, I am reporting the following bug that appeared
during a ghci session on a Debian testing box.
Regards,
Yitz
___ ___ _
/ _ \ /\ /\/ __(_)
/ /_\// /_/ / / | | GHC Interactive, version 6.0.1, for Haskell 98.
/ /_\\/ __ / /___| | http://www.haskell.org/ghc/
\/\/ /_/\/|_| Type :? for help.
Loading package base ... linking ... done.
Prelude replicate 5 foo
[foo,foo,foo,foo,foo]
Prelude do {a - sequence (replicate 10 (System.Random.getStdRandom
(System.Random.randomR (1::Int, 5; print a}
[2,1,1,4,3,3,2,4,4,3]
Prelude do {a - sequence (replicate 10 (System.Random.getStdRandom
(System.Random.randomR (1::Int, 5; print a}
[1,2,2,2,1,4,2,1,4,3]
Prelude do {a - sequence (replicate 10 (System.Random.getStdRandom
(System.Random.randomR (1::Int, 5; print a}
[4,1,3,4,2,4,4,2,4,2]
Prelude do {a - sequence (replicate 10 (System.Random.getStdRandom
(System.Random.randomR (1::Int, 5; print a}
[3,4,4,1,5,1,4,2,1,1]
Prelude do {a - sequence (replicate 10 (System.Random.getStdRandom
(System.Random.randomR (1::Int, 5; print a}
[2,4,3,2,2,4,1,4,4,2]
Prelude do {a - sequence (replicate 10 (System.Random.getStdRandom
(System.Random.randomR (1::Int, 5; print a}
[5,4,2,3,4,1,5,3,3,1]
Prelude do {a - sequence (repeat (System.Random.getStdRandom
(System.Random.randomR (1::Int, 5; print (take 10 a)}
Interrupted.
Prelude do {a - sequence (replicate 10 (System.Random.randomRIO
(1::Int, 5))); print a}
[*** Exception: stack overflow
Prelude do {a - sequence (replicate 10 (System.Random.randomRIO
(1::Int, 5))); print a}
interactive: internal error: eval_thunk_selector: strange selectee 29
Please report this as a bug to [EMAIL PROTECTED],
or http://www.sourceforge.net/projects/ghc/
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RE: eval_thunk_selector: strange selectee 29
interactive: internal error: eval_thunk_selector: strange selectee 29 Please report this as a bug to [EMAIL PROTECTED], or http://www.sourceforge.net/projects/ghc/ This bug has been fixed, the fix will be in 6.2. Thanks for the report. Cheers, Simon ___ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
