On Fri, Jul 8, 2016 at 7:50 AM, Raj <rajenderreddykompa...@gmail.com> wrote: > By the way I am using go1.7 beta2. Same error was appearing with go1.6 also. > > What does those 8 minutes mean in stack trace?
Those annotations mean that those goroutines have been sitting around waiting for something to happen for 8 minutes. The stack trace is pointing you at line 498 of compstats.go. That line is apparently panicing for some reason. I would start there. Ian > On Friday, July 8, 2016 at 8:13:26 PM UTC+5:30, Raj wrote: >> >> Hi, >> >> My program which has 10 user gourotines to read tables from a database and >> generates some stats. I am using github.com/alexbrainman/odbc to connect SQL >> Server 2012. >> >> I am getting driver: bad connection frequently, but not always. Can >> somebody help me in debugging this? >> >> >> Sart of the stack trace.... >> >> panic: driver: bad connection >> >> goroutine 18 [running]: >> panic(0x4fa740, 0xc04200c2b0) >> C:/Go/src/runtime/panic.go:500 +0x1af fp=0xc0421d70f0 sp=0xc0421d7060 >> main.process(0xc0420e4000, 0xc042165070) >> C:/Users/tgmsaven1/go/src/github.com/TGMNY/compstats/compstats.go:498 >> +0x274a fp=0xc0421d7f80 sp=0xc0421d70f0 >> runtime.goexit() >> C:/Go/src/runtime/asm_amd64.s:2086 +0x1 fp=0xc0421d7f88 >> sp=0xc0421d7f80 >> created by main.main >> C:/Users/tgmsaven1/go/src/github.com/TGMNY/compstats/compstats.go:268 >> +0xfc4 >> >> goroutine 1 [semacquire, 8 minutes]: >> runtime.gopark(0x534e98, 0x5b4140, 0x51b357, 0xa, 0x19, 0x4) >> C:/Go/src/runtime/proc.go:259 +0x14f fp=0xc0424dd680 sp=0xc0424dd650 >> runtime.goparkunlock(0x5b4140, 0x51b357, 0xa, 0xc042072219, 0x4) >> C:/Go/src/runtime/proc.go:265 +0x65 fp=0xc0424dd6c0 sp=0xc0424dd680 >> runtime.semacquire(0xc04216507c, 0x1) >> C:/Go/src/runtime/sema.go:111 +0x222 fp=0xc0424dd728 sp=0xc0424dd6c0 >> sync.runtime_Semacquire(0xc04216507c) >> C:/Go/src/runtime/sema.go:47 +0x37 fp=0xc0424dd748 sp=0xc0424dd728 >> sync.(*WaitGroup).Wait(0xc042165070) >> C:/Go/src/sync/waitgroup.go:131 +0x9e fp=0xc0424dd798 sp=0xc0424dd748 >> main.main() >> C:/Users/tgmsaven1/go/src/github.com/TGMNY/compstats/compstats.go:310 >> +0x16c4 fp=0xc0424ddf48 sp=0xc0424dd798 >> runtime.main() >> C:/Go/src/runtime/proc.go:183 +0x1f0 fp=0xc0424ddfa0 sp=0xc0424ddf48 >> runtime.goexit() >> C:/Go/src/runtime/asm_amd64.s:2086 +0x1 fp=0xc0424ddfa8 >> sp=0xc0424ddfa0 >> >> goroutine 2 [force gc (idle), 8 minutes]: >> runtime.gopark(0x534e98, 0x5ac210, 0x51c25d, 0xf, 0x534d14, 0x1) >> C:/Go/src/runtime/proc.go:259 +0x14f fp=0xc04205ff28 sp=0xc04205fef8 >> runtime.goparkunlock(0x5ac210, 0x51c25d, 0xf, 0xc042058014, 0x1) >> C:/Go/src/runtime/proc.go:265 +0x65 fp=0xc04205ff68 sp=0xc04205ff28 >> runtime.forcegchelper() >> C:/Go/src/runtime/proc.go:224 +0xb6 fp=0xc04205ffa0 sp=0xc04205ff68 >> runtime.goexit() >> C:/Go/src/runtime/asm_amd64.s:2086 +0x1 fp=0xc04205ffa8 >> sp=0xc04205ffa0 >> created by runtime.init.4 >> C:/Go/src/runtime/proc.go:213 +0x3c >> >> goroutine 3 [GC sweep wait]: >> runtime.gopark(0x534e98, 0x5ac3e0, 0x51bb3d, 0xd, 0x462c14, 0x1) >> C:/Go/src/runtime/proc.go:259 +0x14f fp=0xc042061f18 sp=0xc042061ee8 >> runtime.goparkunlock(0x5ac3e0, 0x51bb3d, 0xd, 0x14, 0x1) >> C:/Go/src/runtime/proc.go:265 +0x65 fp=0xc042061f58 sp=0xc042061f18 >> runtime.bgsweep(0xc0420040e0) >> C:/Go/src/runtime/mgcsweep.go:79 +0x13c fp=0xc042061f98 >> sp=0xc042061f58 >> runtime.goexit() >> C:/Go/src/runtime/asm_amd64.s:2086 +0x1 fp=0xc042061fa0 >> sp=0xc042061f98 >> created by runtime.gcenable >> C:/Go/src/runtime/mgc.go:195 +0x68 >> >> goroutine 4 [finalizer wait, 8 minutes]: >> runtime.gopark(0x534e98, 0x5c6870, 0x51bf5c, 0xe, 0x14, 0x1) >> C:/Go/src/runtime/proc.go:259 +0x14f fp=0xc04205bee8 sp=0xc04205beb8 >> runtime.goparkunlock(0x5c6870, 0x51bf5c, 0xe, 0x14, 0x1) >> C:/Go/src/runtime/proc.go:265 +0x65 fp=0xc04205bf28 sp=0xc04205bee8 >> runtime.runfinq() >> C:/Go/src/runtime/mfinal.go:158 +0xc1 fp=0xc04205bfa0 sp=0xc04205bf28 >> runtime.goexit() >> C:/Go/src/runtime/asm_amd64.s:2086 +0x1 fp=0xc04205bfa8 >> sp=0xc04205bfa0 >> created by runtime.createfing >> C:/Go/src/runtime/mfinal.go:139 +0x7a >> >> goroutine 5 [chan receive, 8 minutes]: >> runtime.gopark(0x534e98, 0xc042072298, 0x51b961, 0xc, 0x17, 0x3) >> C:/Go/src/runtime/proc.go:259 +0x14f fp=0xc04205de60 sp=0xc04205de30 >> runtime.goparkunlock(0xc042072298, 0x51b961, 0xc, 0x17, 0x3) >> C:/Go/src/runtime/proc.go:265 +0x65 fp=0xc04205dea0 sp=0xc04205de60 >> runtime.chanrecv(0x4f1220, 0xc042072240, 0xc04205df80, 0x1, 0x0) >> C:/Go/src/runtime/chan.go:496 +0x2ed fp=0xc04205df28 sp=0xc04205dea0 >> runtime.chanrecv2(0x4f1220, 0xc042072240, 0xc04205df80, 0x0) >> C:/Go/src/runtime/chan.go:383 +0x35 fp=0xc04205df60 sp=0xc04205df28 >> database/sql.(*DB).connectionOpener(0xc0420e4000) >> C:/Go/src/database/sql/sql.go:727 +0x51 fp=0xc04205df98 >> sp=0xc04205df60 >> runtime.goexit() >> C:/Go/src/runtime/asm_amd64.s:2086 +0x1 fp=0xc04205dfa0 >> sp=0xc04205df98 >> created by database/sql.Open >> C:/Go/src/database/sql/sql.go:493 +0x1ec >> > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. 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