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| author | Mathieu Othacehe <m.othacehe@gmail.com> | 2017-11-03 13:40:07 +0100 |
|---|---|---|
| committer | Mathieu Othacehe <m.othacehe@gmail.com> | 2017-11-06 20:02:25 +0100 |
| commit | b1a30793477c705a136546798d8e1d27802dd4b7 (patch) | |
| tree | 1e56c5072af10e1d3b1af7660bd8d171d7909882 /gnu | |
| parent | dd208b936cb5618ae34bf2df416bf2c0c3a049c3 (diff) | |
| download | patches-b1a30793477c705a136546798d8e1d27802dd4b7.tar patches-b1a30793477c705a136546798d8e1d27802dd4b7.tar.gz | |
system: vm: Use 2^32 - 1 as hash size.
* gnu/system/vm.scm (operating-system-uuid): Use 2^32 - 1 instead of
2^32 as hash size.
On some 32 bit system (ARM for example), 2^32 exceeds hash max
size (ULONG_MAX = 2^32 - 1).
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/system/vm.scm | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm index 3127b305e1..44246083b3 100644 --- a/gnu/system/vm.scm +++ b/gnu/system/vm.scm @@ -372,13 +372,13 @@ TYPE (one of 'iso9660 or 'dce). Return a UUID object." (bytevector->uuid (uint-list->bytevector (list (hash file-system-type - (expt 2 32)) + (- (expt 2 32) 1)) (hash (operating-system-host-name os) - (expt 2 32)) + (- (expt 2 32) 1)) (hash (operating-system-services os) - (expt 2 32)) + (- (expt 2 32) 1)) (hash (operating-system-file-systems os) - (expt 2 32))) + (- (expt 2 32) 1))) (endianness little) 4) type))) |