https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65349
Bug ID: 65349
Summary: [5 Regression] go tool crashes, can't compile go code
on 32bit linux systems
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: go
Assignee: ian at airs dot com
Reporter: doko at gcc dot gnu.org
CC: cmang at google dot com
The go command didn't ship with earlier GCC versions, so you may argue that it
is not a regression, however a go command backported from 1.2.2 was able to
build code with 4.9 on at least arm-linux-gnueabihf, powerpc-linux-gnu and
i686-linux-gnu. Double-checked that the backported go command built with 5.0
shows the same failure. This seems to work on architectures like
aarch64-linux-gnu, powerpc64le-linux-gnu and x86_64-linux-gnu.
On these architectures I see for "go -v
on powerpc-linux-gnu (not on armhf and i386) building go-md2man
https://launchpad.net/ubuntu/+source/go-md2man/1-2ubuntu2
fatal error: freeing too small block
goroutine 16 [running]:
runtime_dopanic
../../../src/libgo/runtime/panic.c:131
runtime_throw
../../../src/libgo/runtime/panic.c:193
__go_free
../../../src/libgo/runtime/malloc.goc:354
__go_map_rehash
../../../src/libgo/runtime/go-map-index.c:66
__go_map_index
../../../src/libgo/runtime/go-map-index.c:120
main.$nested26
../../src/gotools/../libgo/go/cmd/go/main.go:565
filepath.walk
../../../src/libgo/go/path/filepath/path.go:347
filepath.walk
../../../src/libgo/go/path/filepath/path.go:372
path_filepath.Walk
../../../src/libgo/go/path/filepath/path.go:394
main.matchPackages
../../src/gotools/../libgo/go/cmd/go/main.go:544
main.allPackages
../../src/gotools/../libgo/go/cmd/go/main.go:481
main.importPaths
../../src/gotools/../libgo/go/cmd/go/main.go:329
main.packagesAndErrors
../../src/gotools/../libgo/go/cmd/go/pkg.go:902
main.packages
../../src/gotools/../libgo/go/cmd/go/pkg.go:883
main.runList
../../src/gotools/../libgo/go/cmd/go/list.go:175
main.main
../../src/gotools/../libgo/go/cmd/go/main.go:163
runtime_main
../../../src/libgo/runtime/proc.c:550
panic during panic
goroutine 16 [running]:
runtime_dopanic
../../../src/libgo/runtime/panic.c:131
runtime_startpanic
../../../src/libgo/runtime/panic.c:100
runtime_throw
../../../src/libgo/runtime/panic.c:191
runtime_mallocgc
../../../src/libgo/runtime/malloc.goc:116
__go_alloc
../../../src/libgo/runtime/malloc.goc:321
callback
../../../src/libgo/runtime/go-caller.c:50
dwarf_lookup_pc
../../../src/libbacktrace/dwarf.c:2838
dwarf_fileline
../../../src/libbacktrace/dwarf.c:2877
backtrace_pcinfo
../../../src/libbacktrace/fileline.c:176
__go_file_line
../../../src/libgo/runtime/go-caller.c:137
runtime_printcreatedby
../../../src/libgo/runtime/proc.c:613
runtime_dopanic
../../../src/libgo/runtime/panic.c:132
runtime_throw
../../../src/libgo/runtime/panic.c:193
__go_free
../../../src/libgo/runtime/malloc.goc:354
__go_map_rehash
../../../src/libgo/runtime/go-map-index.c:66
__go_map_index
../../../src/libgo/runtime/go-map-index.c:120
main.$nested26
../../src/gotools/../libgo/go/cmd/go/main.go:565
filepath.walk
../../../src/libgo/go/path/filepath/path.go:347
filepath.walk
../../../src/libgo/go/path/filepath/path.go:372
path_filepath.Walk
../../../src/libgo/go/path/filepath/path.go:394
main.matchPackages
../../src/gotools/../libgo/go/cmd/go/main.go:544
main.allPackages
../../src/gotools/../libgo/go/cmd/go/main.go:481
main.importPaths
../../src/gotools/../libgo/go/cmd/go/main.go:329
main.packagesAndErrors
../../src/gotools/../libgo/go/cmd/go/pkg.go:902
main.packages
../../src/gotools/../libgo/go/cmd/go/pkg.go:883
main.runList
../../src/gotools/../libgo/go/cmd/go/list.go:175
main.main
../../src/gotools/../libgo/go/cmd/go/main.go:163
runtime_main
../../../src/libgo/runtime/proc.c:550
stack trace unavailable
on powerpc building nuntium:
fatal error: freeing too small block
goroutine 16 [running]:
runtime_dopanic
../../../src/libgo/runtime/panic.c:131
runtime_throw
../../../src/libgo/runtime/panic.c:193
__go_free
../../../src/libgo/runtime/malloc.goc:354
__go_map_rehash
../../../src/libgo/runtime/go-map-index.c:66
__go_map_index
../../../src/libgo/runtime/go-map-index.c:120
main.$nested26
../../src/gotools/../libgo/go/cmd/go/main.go:565
filepath.walk
../../../src/libgo/go/path/filepath/path.go:347
filepath.walk
../../../src/libgo/go/path/filepath/path.go:372
path_filepath.Walk
../../../src/libgo/go/path/filepath/path.go:394
main.matchPackages
../../src/gotools/../libgo/go/cmd/go/main.go:544
main.allPackages
../../src/gotools/../libgo/go/cmd/go/main.go:481
main.importPaths
../../src/gotools/../libgo/go/cmd/go/main.go:329
main.packagesAndErrors
../../src/gotools/../libgo/go/cmd/go/pkg.go:902
main.packages
../../src/gotools/../libgo/go/cmd/go/pkg.go:883
main.runList
../../src/gotools/../libgo/go/cmd/go/list.go:175
main.main
../../src/gotools/../libgo/go/cmd/go/main.go:163
runtime_main
../../../src/libgo/runtime/proc.c:550
panic during panic
goroutine 16 [running]:
runtime_dopanic
../../../src/libgo/runtime/panic.c:131
runtime_startpanic
../../../src/libgo/runtime/panic.c:100
runtime_throw
../../../src/libgo/runtime/panic.c:191
runtime_mallocgc
../../../src/libgo/runtime/malloc.goc:116
__go_alloc
../../../src/libgo/runtime/malloc.goc:321
callback
../../../src/libgo/runtime/go-caller.c:50
dwarf_lookup_pc
../../../src/libbacktrace/dwarf.c:2838
dwarf_fileline
../../../src/libbacktrace/dwarf.c:2877
backtrace_pcinfo
../../../src/libbacktrace/fileline.c:176
__go_file_line
../../../src/libgo/runtime/go-caller.c:137
runtime_printcreatedby
../../../src/libgo/runtime/proc.c:613
runtime_dopanic
../../../src/libgo/runtime/panic.c:132
runtime_throw
../../../src/libgo/runtime/panic.c:193
__go_free
../../../src/libgo/runtime/malloc.goc:354
__go_map_rehash
../../../src/libgo/runtime/go-map-index.c:66
__go_map_index
../../../src/libgo/runtime/go-map-index.c:120
main.$nested26
../../src/gotools/../libgo/go/cmd/go/main.go:565
filepath.walk
../../../src/libgo/go/path/filepath/path.go:347
filepath.walk
../../../src/libgo/go/path/filepath/path.go:372
path_filepath.Walk
../../../src/libgo/go/path/filepath/path.go:394
main.matchPackages
../../src/gotools/../libgo/go/cmd/go/main.go:544
main.allPackages
../../src/gotools/../libgo/go/cmd/go/main.go:481
main.importPaths
../../src/gotools/../libgo/go/cmd/go/main.go:329
main.packagesAndErrors
../../src/gotools/../libgo/go/cmd/go/pkg.go:902
main.packages
../../src/gotools/../libgo/go/cmd/go/pkg.go:883
main.runList
../../src/gotools/../libgo/go/cmd/go/list.go:175
main.main
../../src/gotools/../libgo/go/cmd/go/main.go:163
runtime_main
../../../src/libgo/runtime/proc.c:550
stack trace unavailable
