OK, this patch appears to fix the problem, indeed. Dima 2010/1/11 Stephen Linton <s...@cs.st-andrews.ac.uk>: > Try this patch for saveload.c: > > 708a709 >> static Obj ProtectFname; > 727a729,731 >> /* For some reason itanium GC seems unable to spot fname */ >> ProtectFname = fname; >> > 730a735,736 >> ProtectFname = (Obj)0L; >> > 1070a1077,1078 >> InitGlobalBag(&ProtectFname, "Protected Filename for SaveWorkspace"); >> > > It should bullet-proof the filename through the garbage collection. > > Steve > > > On 10 Jan 2010, at 21:26, William Stein wrote: > >> On Sun, Jan 10, 2010 at 1:06 PM, Stephen Linton <s...@cs.st-andrews.ac.uk> >> wrote: >>> As far as I can tell, all the relevant code is identical in 4.4.10 + patch >>> and 4.4.12. Of course, I may (must, perhaps) have too narrow a definition >>> of relevant, but I wonder if its actually a matter of 4.4.10 being lucky in >>> some way, rather than a bug having been introduced later. >>> >>> If we think the problem is just SaveWorkspace, I can hack around it, but I >>> for one, would certainly be holding my breath waiting for the next similar >>> bug to show up. >>> >>> Steve >> >> It's likely better to hack around it if it is limited to >> SaveWorkspace, then to simply stick with 4.4.10, since presumably >> there are many bugs that got fixed in 4.4.12 that are in 4.4.10. >> Moreover, whatever is the real bug causing this is probably not way >> worse in 4.4.12 than in 4.4.10. >> >> Do you have still know how to access the Itanium account(s) I got you? >> Do I need to setup anything for you? >> >> -- William >> >>> >>> On 10 Jan 2010, at 19:11, William Stein wrote: >>> >>>> On Sun, Jan 10, 2010 at 10:17 AM, Dima Pasechnik <dimp...@gmail.com> wrote: >>>>> >>>>> On Jan 10, 11:56 pm, William Stein <wst...@gmail.com> wrote: >>>>>> On Sat, Jan 9, 2010 at 11:10 PM, Dima Pasechnik <dimp...@gmail.com> >>>>>> wrote: >>>>>>> William, >>>>>>> I think I can reproduce one of your Itanium GAP bug; the workspace >>>>>>> filename gets mangled by SaveWorkspace. >>>>>>> (so the workspace gets saved, but with a horribly wrong name...) >>>>>>> Should be next to trivial to fix... >>>>>>> Dima >>>>>> >>>>>> Sweet. If I remember correctly, workspace bugs were the *only* bugs we >>>>>> had. >>>>> >>>>> turned out to be a Itanium-specific GC bug, so fixing might take a >>>>> little while. >>>>> Oh well. >>>>> >>>>> Dmitrii >>>> >>>> Since the bug appears not to be in 4.10, can you look what was changed >>>> between 4.10 and 4.12 that is related to Itanium specific garbage >>>> collection? (I may have already tried that and found that it wasn't >>>> so easy...) >>>> >>>>> >>>>>> >>>>>> William >>>>>> >>>>>> >>>>> >>>>> -- >>>>> To post to this group, send email to sage-support@googlegroups.com >>>>> To unsubscribe from this group, send email to >>>>> sage-support+unsubscr...@googlegroups.com >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/sage-support >>>>> URL: http://www.sagemath.org >>>>> >>>>> >>>> >>>> >>>> >>>> -- >>>> William Stein >>>> Associate Professor of Mathematics >>>> University of Washington >>>> http://wstein.org >>> >>> >> >> >> >> -- >> William Stein >> Associate Professor of Mathematics >> University of Washington >> http://wstein.org > >
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