Segmentation violation on context timeout

[salarali]

We started experiencing occasional seg faults on context timeouts, after upgrading from 8.0.0 to 8.4.0.

Expected Behavior

No panic

Current Behavior

2020-12-04T00:24:23.452Z	ERROR	Unable to setex on redis {"error": "context deadline exceeded"}
unexpected fault address 0x102010081
fatal error: fault
[signal SIGSEGV: segmentation violation code=0x1 addr=0x102010081 pc=0x46a485]
goroutine 835951033 [running]:
runtime.throw(0x1bda04b, 0x5)
	/usr/local/go/src/runtime/panic.go:1116 +0x72 fp=0xc05078bab8 sp=0xc05078ba88 pc=0x4368e2
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:702 +0x3cc fp=0xc05078bae8 sp=0xc05078bab8 pc=0x44d54c
runtime.memmove(0xc86e876000, 0x101010101, 0x1000000)
	/usr/local/go/src/runtime/memmove_amd64.s:392 +0x485 fp=0xc05078baf0 sp=0xc05078bae8 pc=0x46a485
runtime.concatstrings(0x0, 0xc05078bbd0, 0x3, 0x3, 0xc7944185a0, 0xc05078bc20)
	/usr/local/go/src/runtime/string.go:51 +0x183 fp=0xc05078bb88 sp=0xc05078baf0 pc=0x451fc3
runtime.concatstring3(0x0, 0x101010101, 0x1000000, 0x1bd6c08, 0x1, 0x1000000000000, 0x101010100, 0xc067675df0, 0x1)
	/usr/local/go/src/runtime/string.go:62 +0x47 fp=0xc05078bbc8 sp=0xc05078bb88 pc=0x4521d7
net.(*OpError).Error(0x2ec1060, 0x20075a0, 0xc793cfea80)
	/usr/local/go/src/net/net.go:467 +0x27b fp=0xc05078bc30 sp=0xc05078bbc8 pc=0x6084cb
github.com/go-redis/redis/v8.(*Script).Run(0xc00020f9e0, 0x20075a0, 0xc793cfea80, 0x2007920, 0xc00127a880, 0xc067675dd0, 0x1, 0x1, 0xc067675df0, 0x1, ...)
	/home/ec2-user/go/pkg/mod/github.com/go-redis/redis/v8@v8.4.0/script.go:61 +0x1aa fp=0xc05078bca8 sp=0xc05078bc30 pc=0xbac6ba

Let me know if you require further information. For now, we have reverted back to 8.0.0.