作者:张富春(ahfuzhang)，转载时请注明作者和引用链接，谢谢！
这只是一个简单的队列，在单个协程中运行，莫名其妙就 panic 了，而且堆栈信息中找不到有用信息。
同样的程序在 linux 中执行又是对的。
暂时想不明白是为什么。
Running tool: /opt/homebrew/bin/go test -timeout 30s -run ^Test_SpscQueue_With_diff_size$ github.com/ahfuzhang/spscqueue
=== RUN Test_SpscQueue_With_diff_size
unexpected fault address 0x140000d700e
fatal error: fault
[signal SIGBUS: bus error code=0x1 addr=0x140000d700e pc=0x100e898e0]
goroutine 6 gp=0x14000003dc0 m=0 mp=0x100fd9c20 [running]:
runtime.throw({0x100e92d5d?, 0x69?})
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/panic.go:1023 +0x40 fp=0x140000565e0 sp=0x140000565b0 pc=0x100dc2230
runtime.sigpanic()
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/signal_unix.go:878 +0x178 fp=0x14000056640 sp=0x140000565e0 pc=0x100ddae98
github.com/ahfuzhang/spscqueue.(*SpscQueue).Alloc(0x2007?, 0xed6220?)
/code/github.com/ahfuzhang/spscqueue/spsc_queue.go:287 +0x1c0 fp=0x14000056670 sp=0x14000056650 pc=0x100e898e0
github.com/ahfuzhang/spscqueue.oneByOneTest({0x100f02030, 0x140000d6000}, 0x1)
/code/github.com/ahfuzhang/spscqueue/spsc_queue_test.go:672 +0x5c fp=0x140000566d0 sp=0x14000056670 pc=0x100e8f7ac
github.com/ahfuzhang/spscqueue.Test_SpscQueue_With_diff_size(0x1400009e680)
/code/github.com/ahfuzhang/spscqueue/spsc_queue_test.go:721 +0xf8 fp=0x14000056760 sp=0x140000566d0 pc=0x100e8fa48
testing.tRunner(0x1400009e680, 0x100effaa0)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/testing/testing.go:1689 +0xec fp=0x140000567b0 sp=0x14000056760 pc=0x100e504fc
testing.(*T).Run.gowrap1()
/opt/homebrew/Cellar/go/1.22.0/libexec/src/testing/testing.go:1742 +0x2c fp=0x140000567d0 sp=0x140000567b0 pc=0x100e5134c
runtime.goexit({})
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/asm_arm64.s:1222 +0x4 fp=0x140000567d0 sp=0x140000567d0 pc=0x100dfb534
created by testing.(*T).Run in goroutine 1
/opt/homebrew/Cellar/go/1.22.0/libexec/src/testing/testing.go:1742 +0x318
goroutine 1 gp=0x140000021c0 m=nil [chan receive]:
runtime.gopark(0x140000c59c8?, 0x1400009cdd0?, 0x58?, 0xce?, 0x1400009cdd0?)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:402 +0xc8 fp=0x140000c5990 sp=0x140000c5970 pc=0x100dc5088
runtime.chanrecv(0x140000880e0, 0x140000c5a8f, 0x1)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/chan.go:583 +0x404 fp=0x140000c5a10 sp=0x140000c5990 pc=0x100d908c4
runtime.chanrecv1(0x100fd8f20?, 0x100ed61a0?)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/chan.go:442 +0x14 fp=0x140000c5a40 sp=0x140000c5a10 pc=0x100d904b4
testing.(*T).Run(0x1400009e4e0, {0x100e98cf6?, 0x140000c5b38?}, 0x100effaa0)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/testing/testing.go:1750 +0x32c fp=0x140000c5b00 sp=0x140000c5a40 pc=0x100e5121c
testing.runTests.func1(0x1400009e4e0)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/testing/testing.go:2161 +0x40 fp=0x140000c5b40 sp=0x140000c5b00 pc=0x100e52ff0
testing.tRunner(0x1400009e4e0, 0x140000c5c58)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/testing/testing.go:1689 +0xec fp=0x140000c5b90 sp=0x140000c5b40 pc=0x100e504fc
testing.runTests(0x1400000e030, {0x100fc1f00, 0xd, 0xd}, {0x1400006bd18?, 0x100e3ea80?, 0x100fd9100?})
/opt/homebrew/Cellar/go/1.22.0/libexec/src/testing/testing.go:2159 +0x3b0 fp=0x140000c5c80 sp=0x140000c5b90 pc=0x100e52ef0
testing.(*M).Run(0x140000961e0)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/testing/testing.go:2027 +0x5a4 fp=0x140000c5eb0 sp=0x140000c5c80 pc=0x100e51c24
main.main()
_testmain.go:71 +0x16c fp=0x140000c5f40 sp=0x140000c5eb0 pc=0x100e91aec
runtime.main()
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:271 +0x28c fp=0x140000c5fd0 sp=0x140000c5f40 pc=0x100dc4c2c
runtime.goexit({})
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/asm_arm64.s:1222 +0x4 fp=0x140000c5fd0 sp=0x140000c5fd0 pc=0x100dfb534
goroutine 2 gp=0x14000002c40 m=nil [force gc (idle)]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:402 +0xc8 fp=0x14000054f90 sp=0x14000054f70 pc=0x100dc5088
runtime.goparkunlock(...)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:408
runtime.forcegchelper()
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:326 +0xb8 fp=0x14000054fd0 sp=0x14000054f90 pc=0x100dc4ee8
runtime.goexit({})
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/asm_arm64.s:1222 +0x4 fp=0x14000054fd0 sp=0x14000054fd0 pc=0x100dfb534
created by runtime.init.6 in goroutine 1
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:314 +0x24
goroutine 3 gp=0x14000003500 m=nil [GC sweep wait]:
runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:402 +0xc8 fp=0x14000055760 sp=0x14000055740 pc=0x100dc5088
runtime.goparkunlock(...)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:408
runtime.bgsweep(0x14000088000)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mgcsweep.go:278 +0xa0 fp=0x140000557b0 sp=0x14000055760 pc=0x100dafa30
runtime.gcenable.gowrap1()
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mgc.go:203 +0x28 fp=0x140000557d0 sp=0x140000557b0 pc=0x100da3c58
runtime.goexit({})
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/asm_arm64.s:1222 +0x4 fp=0x140000557d0 sp=0x140000557d0 pc=0x100dfb534
created by runtime.gcenable in goroutine 1
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mgc.go:203 +0x6c
goroutine 4 gp=0x140000036c0 m=nil [GC scavenge wait]:
runtime.gopark(0x14000088000?, 0x100ec54f0?, 0x1?, 0x0?, 0x140000036c0?)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:402 +0xc8 fp=0x14000055f60 sp=0x14000055f40 pc=0x100dc5088
runtime.goparkunlock(...)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:408
runtime.(*scavengerState).park(0x100fd9220)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mgcscavenge.go:425 +0x5c fp=0x14000055f90 sp=0x14000055f60 pc=0x100dad42c
runtime.bgscavenge(0x14000088000)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mgcscavenge.go:653 +0x44 fp=0x14000055fb0 sp=0x14000055f90 pc=0x100dad984
runtime.gcenable.gowrap2()
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mgc.go:204 +0x28 fp=0x14000055fd0 sp=0x14000055fb0 pc=0x100da3bf8
runtime.goexit({})
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/asm_arm64.s:1222 +0x4 fp=0x14000055fd0 sp=0x14000055fd0 pc=0x100dfb534
created by runtime.gcenable in goroutine 1
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mgc.go:204 +0xac
goroutine 5 gp=0x14000003c00 m=nil [finalizer wait]:
runtime.gopark(0x0?, 0x0?, 0xb8?, 0x45?, 0x100df6aa4?)
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/proc.go:402 +0xc8 fp=0x14000054580 sp=0x14000054560 pc=0x100dc5088
runtime.runfinq()
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mfinal.go:194 +0x108 fp=0x140000547d0 sp=0x14000054580 pc=0x100da2d28
runtime.goexit({})
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/asm_arm64.s:1222 +0x4 fp=0x140000547d0 sp=0x140000547d0 pc=0x100dfb534
created by runtime.createfing in goroutine 1
/opt/homebrew/Cellar/go/1.22.0/libexec/src/runtime/mfinal.go:164 +0x80
FAIL github.com/ahfuzhang/spscqueue 0.657s