[Vm-dev] Fw: Re: [Cuis-dev] More robust package loading?

[KenD]

Begin forwarded message:

Date: Fri, 25 Dec 2015 04:15:23 -0500
From: "Phil \(list\) via Cuis-dev" <cuis-dev at cuis-smalltalk.org>
To: Discussion of Cuis Smalltalk <cuis-dev at cuis-smalltalk.org>
Cc: "Phil \(list\)" <pbpublist at gmail.com>
Subject: Re: [Cuis-dev] More robust package loading?


Just a quick update on my current issue for anyone else on Linux at
least: I forgot that I recently upgraded my vm from 15.25.3390
to 15.33.3427.  The problem appears to be the vm: 3390 loads everything
as expected but has problems with MessageTally, 3427 works with
MessageTally but has problems loading things... grrr...

Still think more robust package loading could be useful...

On Fri, 2015-12-25 at 03:41 -0500, Phil (list) wrote:
> Happy holidays all!  Here's my gift to the list... ;-)
> 
> It's been a couple of weeks since I attempted to rebuild completely
> from a totally clean base image (2595) and of course it failed
> utterly
> and completely.  After some trial and error, I finally narrowed it
> down
> to a problem installing the stock FFI.pck.st.  I am running a rather
> fluid version of Linux (Debian testing) and it's entirely likely that
> a
> recent system update is causing the problem but I'm having a
> difficult
> time getting more specific than that because when I attempt to load
> FFI, all I get is this wonderful segfault:
> 
> C stack backtrace & registers:
>         eax 0xff887b24 ebx 0xff887a40 ecx 0xff887ad8 edx 0xff887a8c
>         edi 0xff887910 esi 0xff887910 ebp 0xff8879a8 esp 0xff8879f4
>         eip 0xff887c08
> *[0xff887c08]
> ../lib/squeak/4.5-3427/squeak[0x805e8c0]
> ../lib/squeak/4.5-3427/squeak[0x805ebac]
> linux-gate.so.1(__kernel_rt_sigreturn+0x0)[0xf77a4b50]
> ../lib/squeak/4.5-3427/squeak[0x80769bd]
> ../lib/squeak/4.5-3427/squeak(incrementalGC+0x237)[0x807c217]
> ../lib/squeak/4.5-3427/squeak[0x807cb66]
> ../lib/squeak/4.5-3427/squeak[0x807cf7f]
> ../lib/squeak/4.5-3427/squeak[0x807d0bd]
> ../lib/squeak/4.5-3427/squeak(ceStackOverflow+0x6d)[0x807f44d]
> [0xb35832e6]
> ../lib/squeak/4.5-3427/squeak(interpret+0x7b6)[0x8087ef6]
> ../lib/squeak/4.5-3427/squeak(main+0x2af)[0x805f30f]
> /lib/i386-linux-
> gnu/i686/cmov/libc.so.6(__libc_start_main+0xde)[0xf753c70e]
> ../lib/squeak/4.5-3427/squeak[0x8131564]
> 
> 
> Smalltalk stack dump:
> 0xff894cd0 M Array(SequenceableCollection)>at:ifAbsent: 0xb4c9705c:
> a(n) Array
> 0xff894cf0 M Array(Scanner)>typeTableAt: 0xb4ca8ee0: a(n) Array
> 0xff894d0c M Array(Scanner)>scanToken 0xb4ca8ee0: a(n) Array
> 0xff894d28 M Array(Parser)>advance 0xb4ca8ee0: a(n) Array
> 0xff894d40 M Array(Parser)>init:notifying:failBlock: 0xb4ca8ee0: a(n)
> Array
> 0xff894d68 M Array(Parser)>privateReadSelectorFrom: 0xb4ca8ee0: a(n)
> Array
> 0xff894d84 M Parser class>selectorFrom: 0xb3753bd0: a(n) Parser class
> 0xff894da4 M INVALID RECEIVER>addMethodChange: 0xb4ca5d04: a(n) bad
> class
> 0xff894dc0 M INVALID RECEIVER>methodChange: 0xb4ca5d04: a(n) bad
> class
> 0xff894ddc M CodePackageFile(CodeFile)>method: 0xb4c8f2ec: a(n)
> CodePackageFile
> Segmentation fault Fri Dec 25 03:05:08 2015
> 
> (and so on...)
> 
> Granted my main issue is largely the (lack of) information in the VM
> output on the crash (i.e. I have no idea what class/method/line the
> is
> the cause of the problem) but since this is unlikely to change in the
> near term, some sort of verbose package loading mode would be most
> helpful (i.e. 'loading method foo... completed loading method foo'
> type
> messages to transcript when a package is being installed)  While this
> is just about a worst case package loading problem for me, I have had
> other issues in the past loading packages (almost always with the
> code
> being imported, not the package loader itself) and am thinking a more
> robust package loading process (at least when running in some sort of
> debug mode) would be most welcome... does this sound useful to anyone
> else?
> 
> Thanks,
> Phil

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-- 
-KenD