Bug: go race condition causing a SIGSEGV #53
Description
I've been having memory leak issues for ~7 months now on a project of mine and I traced it to this project
see the following panic log.
error
2024/12/20 23:50:19 [Recovery] 2024/12/20 - 23:50:19 panic recovered:
error
runtime error: invalid memory address or nil pointer dereference
error
/usr/local/go/src/runtime/panic.go:261 (0x4506d7)
info
/usr/local/go/src/runtime/signal_unix.go:881 (0x4506a5)
info
/usr/local/go/src/runtime/mbitmap_allocheaders.go:535 (0x4169f9)
info
/usr/local/go/src/runtime/slice.go:258 (0x451de4)
info
/go/pkg/mod/github.com/tom-draper/api-analytics/analytics/go/core@v0.0.0-20240131194017-ce9a529d93ac/core.go:50 (0x99a35e)
info
/go/pkg/mod/github.com/tom-draper/api-analytics/analytics/go/gin@v0.0.0-20240311183400-e61603823215/analytics.go:40 (0x99d536)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/context.go:185 (0x8db479)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/recovery.go:102 (0x8db467)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/context.go:185 (0x8db479)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/recovery.go:102 (0x8db467)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/context.go:185 (0x8da5a4)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/logger.go:249 (0x8da58b)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/context.go:185 (0x8d9991)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/gin.go:633 (0x8d9400)
info
/go/pkg/mod/github.com/gin-gonic/gin@v1.10.0/gin.go:589 (0x8d9091)
info
/usr/local/go/src/net/http/server.go:3137 (0x66922d)
info
/usr/local/go/src/net/http/server.go:2039 (0x665327)
info
/usr/local/go/src/runtime/asm_amd64.s:1695 (0x46e1e0)
info
info
SIGSEGV: segmentation violation
info
PC=0x416217 m=9 sigcode=1 addr=0x20
info
info
goroutine 0 gp=0xc0003a6540 m=9 mp=0xc00058a008 [idle]:
info
runtime.(*mspan).typePointersOfUnchecked(0xc009a4ab00?, 0xc00010a1a0?)
info
/usr/local/go/src/runtime/mbitmap_allocheaders.go:202 +0x37 fp=0xc0002e9e80 sp=0xc0002e9e60 pc=0x416217
info
runtime.scanobject(0xc00003f768?, 0xc00003f768)
info
/usr/local/go/src/runtime/mgcmark.go:1446 +0xb5 fp=0xc0002e9f10 sp=0xc0002e9e80 pc=0x421b95
info
runtime.gcDrain(0xc00003f768, 0x3)
info
/usr/local/go/src/runtime/mgcmark.go:1242 +0x1f4 fp=0xc0002e9f78 sp=0xc0002e9f10 pc=0x4214f4
info
runtime.gcDrainMarkWorkerDedicated(...)
info
/usr/local/go/src/runtime/mgcmark.go:1124
info
runtime.gcBgMarkWorker.func2()
info
/usr/local/go/src/runtime/mgc.go:1387 +0xa5 fp=0xc0002e9fc8 sp=0xc0002e9f78 pc=0x41db65
info
runtime.systemstack(0x0)
info
/usr/local/go/src/runtime/asm_amd64.s:509 +0x4a fp=0xc0002e9fd8 sp=0xc0002e9fc8 pc=0x46c3aaThe rest of the panic log is 20k+ lines of listing all goroutines on my project.