Re: port-arm/51665: shark locks up during nightly run

[David Holland <dholland-bugs%netbsd.org@localhost>]

The following reply was made to PR port-arm/51665; it has been noted by GNATS.

From: David Holland <dholland-bugs%netbsd.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-arm/51665: shark locks up during nightly run
Date: Tue, 17 Jan 2017 18:48:57 +0000

 On Tue, Jan 17, 2017 at 05:45:00PM +0000, Martin Husemann wrote:
  >  Now this is funny...
  >  
  >  I updated the machine to -current and it survived three nightly runs.
  >  But: now I can make it lock up on demand by running:
  >  
  >  	cd /usr/tests/bin/ps
  >  	atf-run | atf-report
  >  
  >  and it hangs here:
  >  
  >  Tests root: /usr/tests/bin/ps
  >  
  >  t_ps (1/1): 8 test cases
  >      default_columns: [0.478048s] Passed.
  >      duplicate_column: [0.071451s] Passed.
  >      minus_O: 
  >  
  >  
  >  No break into ddb, does not answer pings.
 
 Bizarre...
 
 Does it also die without atf-run? That would make it possible to
 insert debug prints. (Otherwise atf will just hide them from you for
 atf reasons.)
 
  > While updating I noticed that besides the memory installed,
  > another difference is the very slow root disk.
 
 That's consistent with it tickling some kind of race, but not very
 enlightening :-(
 
 -- 
 David A. Holland
 dholland%netbsd.org@localhost