On 02/16/2017 11:25 AM, Chet Ramey wrote: > On 2/11/17 5:04 PM, Graham Northup wrote: > >> Bash Version: 4.4 >> Patch Level: 11 >> Release Status: release >> >> Description: >> >> I'm getting a mysterious hang on one of our Arch Linux machines for a >> particular, rather simple script; getting a debugger attached to the >> process after building some debugging symbols, I tracked the hang down >> to this loop in bgp_delete (with some minor formatting): > > It seems obvious in retrospect that the cause is in bgp_add, where there's > no check for the hashed pid colliding with the index into the pidstat list. > Here's a patch that avoids that issue and catches the symptom you found in > case the cause is something else. > > Chet >
Just built bash with the patch applied; I'll be checking in every couple of days to see if that happens again. (As I mentioned previously, it's a bit hard to instigate; consider no news to be good news :) . Thanks for the fix! - Graham
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