[GHC] #13630: ByteString pinned memory can be leaky
GHC
ghc-devs at haskell.org
Sun Apr 30 13:39:41 UTC 2017
#13630: ByteString pinned memory can be leaky
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Reporter: nh2 | Owner: (none)
Type: bug | Status: new
Priority: normal | Milestone:
Component: Runtime System | Version: 8.0.1
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: None/Unknown | Test Case:
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s):
Wiki Page: |
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Comment (by duncan):
I've been wanting to switch to unpinned for ByteString for years, but it's
a lot of work. It'd mean fixing up lots of other libs that use ByteString
internals and it also requires a solution for the mmap'd ByteString use
case (which does have solutions but it's still more work and may need some
RTS extensions to be able to have an mmaped ByteArray# that unmaps when
it's collected).
As a workaround I often recommend people use ShortByteString, which is
part of the bytestring package and uses unpinned memory.
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13630#comment:2>
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