On 8/27/10 12:54 PM, Jeremy Chadwick wrote: > On Fri, Aug 27, 2010 at 12:46:48PM -0400, Glen Barber wrote: >> On 8/27/10 12:33 PM, Kurt Jaeger wrote: >>> Hi! >>> >>>> I have a few clamav instances running in jails on 32-bit hosts without >>>> any issues. A few days ago one of these jails was migrated to a 64-bit >>>> host (8.1-RELEASE), where I noticed clamd (0.96.2_1) segfaults when >>>> queried. >>>> >>>> The issue seems specific to 32bit/64bit compatibility. I have a gdb >>>> session available here: http://gist.github.com/549964 >>>> >>>> Any thoughts on if this is possible? >>> >>> Try >>> >>> Bytecode no >>> >>> in clamd.conf ? >>> >> >> It was set to 'yes' initially. I thought it was disabled with building >> without JIT. At any rate, no, it still segfaults with the same backtrace. > > 1) Is clamd built with debugging symbols enabled? If not, you might want > to rebuild it with such, else it might be difficult to debug the > problem. >
It wasn't initially, but is now. > Also, if the segfault happens after performing the above, can you > provide output from "bt full" instead of just "bt"? > Of course. The new backtrace is here: http://gist.github.com/553734 > 2) Was the software rebuilt from source after the upgrade from i386 to > amd64, or are you expecting the software to work without any hitches > running on amd64 with lib32 (32-bit compatibility libaries)? The latter > is not always possible/the case. > clamav was rebuilt from ports. I previously went as far as downgrading to the previous version, to rule out something between 0.96.1 and 0.96.2; same results there. > I have no familiarity with the software or functions in question, but an > initial guess would be that some piece of the code is making assumptions > about the size of pointers (expecting 4 (32-bit) rather than 8 > (64-bit)). Speculative on my part, but I ponder such when seeing code > like somefunc(sizeof(int)). > Thanks and regards, -- Glen Barber _______________________________________________ freebsd-ports@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-ports To unsubscribe, send any mail to "freebsd-ports-unsubscr...@freebsd.org"
