#5214: SIGSEGV in yieldCapability ()
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Reporter: j.waldmann | Owner: simonmar
Type: bug | Status: new
Priority: high | Milestone: 7.4.2
Component: Runtime System | Version: 7.4.1
Resolution: | Keywords:
Os: Linux | Architecture: x86_64 (amd64)
Failure: Runtime crash | Difficulty: Unknown
Testcase: | Blockedby:
Blocking: | Related:
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Comment(by marlowsd@…):
commit 734f1d484b12b785795b249b4116cfb4817ab55d
{{{
Author: Simon Marlow <marlo...@gmail.com>
Date: Wed Mar 28 11:45:39 2012 +0100
Fix a bug in threadStackOverflow() (maybe #5214)
If we overflow the current stack chunk and copy its entire contents
into the next stack chunk, we could end up with two UNDERFLOW_FRAMEs.
We had a special case to catch this in the case when the old stack
chunk was the last one (ending in STOP_FRAME), but it went wrong for
other chunks.
I found this bug while poking around in the core dump attached to
options and running the nofib suite: imaginary/wheel_sieve2 crashed
with +RTS -kc600 -kb300.
I don't know if this is the cause of all the symptoms reported in
rts/Threads.c | 35 ++++++++++++++++++++++-------------
1 files changed, 22 insertions(+), 13 deletions(-)
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5214#comment:12>
GHC <http://www.haskell.org/ghc/>
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