Chronos: nil pointer dereference HandleCallCommon Functions.go:64

After my first try a month ago when I had a nil pointer exception I now first I ran: go get -u github.com/amit-davidson/Chronos/cmd/chronos

Then tried again to run the application but no luck. The issue is within a single package I think. I tried with the -pkg flag and seems that all the other packages work well including internal.

Hope this helps you: Functions.go:64 fs := domain.CreateFunctionState(blockStateRet.GuardedAccesses, blockStateRet.Lockset)

panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x146e3c4]

goroutine 1 [running]: github.com/amit-davidson/Chronos/ssaUtils.HandleCallCommon(0xc04186c780, 0xc02ad5be08, 0x13a592c, 0x0) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/Functions.go:64 +0x774 github.com/amit-davidson/Chronos/ssaUtils.GetBlockSummary(0xc0259b9f48, 0xc02ad4c840, 0xb) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/Functions.go:160 +0x43e github.com/amit-davidson/Chronos/ssaUtils.(*CFG).calculateBlockStateIfNeeded(0xc0259b9ce8, 0xc0259b9f48, 0xc02ad4c840) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:90 +0x75 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02ad4c840) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:33 +0xa8 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02ad4c790) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02ad4c6e0) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02ad4c630) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02ad4c420) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02ad4c4d0) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02ad4c370) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02a551ce0) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc02a551c30) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc00c0f9ce0) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc00c0f9c30) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc00c0f9b80) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).traverseGraph(0xc0259b9ce8, 0xc0259b9f48, 0xc0259b9ba8) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:41 +0x4c2 github.com/amit-davidson/Chronos/ssaUtils.(*CFG).calculateFunctionState(0xc0259b9ce8, 0xc0259b9f48, 0xc00c0f9b80) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/CFG.go:27 +0xd0 github.com/amit-davidson/Chronos/ssaUtils.HandleFunction(0xc0259b9f48, 0xc02840b040, 0xc0239a1e60) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/Functions.go:201 +0x298 github.com/amit-davidson/Chronos/ssaUtils.HandleCallCommon(0xc0259b9f48, 0xc04185ae40, 0x13a565f, 0x0) /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/Functions.go:63 +0x767 main.main() /Users/developer/go/src/github.com/amit-davidson/Chronos/cmd/chronos/main.go:34 +0x4b9

About this issue

Original URL
State: open
Created 4 years ago
Comments: 20 (10 by maintainers)

Most upvoted comments

@amit-davidson cool. Let me know when I can test that! no rush 😉

jtorvald on Nov 25, 2020

@amit-davidson yeah, we’re good, thanks! The git hash of the version I tested: 4ab82c6b090763145bb5d57cbfe4b08fc4e23e8f


$ chronos --file cmd/server/main.go 2>&1 |head -n 7 
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x14a47d4]

goroutine 1 [running]:
github.com/amit-davidson/Chronos/ssaUtils.HandleCallCommon(0xc01b59c800, 0xc02b0fe198, 0x13a8b43, 0x0)
        /Users/developer/go/src/github.com/amit-davidson/Chronos/ssaUtils/Functions.go:64 +0x774
github.com/amit-davidson/Chronos/ssaUtils.GetBlockSummary(0xc03afdff10, 0xc02b3811e0, 0xb)

The line where it happens:


fs := domain.CreateFunctionState(blockStateRet.GuardedAccesses, blockStateRet.Lockset)

jtorvald on Nov 22, 2020