Russ Cox b3932baba4 runtime: fix sudog leak ... The SudoG used to sit on the stack, so it was cheap to allocated and didn't need to be cleaned up when finished. For the conversion to Go, we had to move sudog off the stack for a few reasons, so we added a cache of recently used sudogs to keep allocation cheap. But we didn't add any of the necessary cleanup before adding a SudoG to the new cache, and so the cached SudoGs had stale pointers inside them that have caused all sorts of awful, hard to debug problems. CL 155760043 made sure SudoG.elem is cleaned up. CL 150520043 made sure SudoG.selectdone is cleaned up. This CL makes sure SudoG.next, SudoG.prev, and SudoG.waitlink are cleaned up. I should have done this when I did the other two fields; instead I wasted a week tracking down a leak they caused. A dangling SudoG.waitlink can point into a sudogcache list that has been "forgotten" in order to let the GC collect it, but that dangling .waitlink keeps the list from being collected. And then the list holding the SudoG with the dangling waitlink can find itself in the same situation, and so on. We end up with lists of lists of unusable SudoGs that are still linked into the object graph and never collected (given the right mix of non-trivial selects and non-channel synchronization). More details in golang.org/issue/9110. Fixes #9110. LGTM=r R=r CC=dvyukov, golang-codereviews, iant, khr https://golang.org/cl/177870043		2014-11-16 16:44:45 -05:00
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bug083.dir
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bug488.dir	test: add test for confusion with dot imports	2014-07-20 10:28:51 -07:00
issue3552.dir
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issue6789.dir
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issue7648.dir	cmd/gc: fix spurious "bad negated constant" for complex constants.	2014-04-01 02:55:38 -04:00
issue7995b.dir	cmd/gc: correct handling of globals, func args, results	2014-05-15 15:34:53 -04:00
issue8060.dir	cmd/gc: generate type alg after calling dowidth.	2014-09-15 18:24:16 +02:00
issue8280.dir	cmd/gc: fix import of package with var func returning _	2014-09-24 16:53:34 -04:00
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bug173.go	cmd/gc: implement 'for range x {'	2014-07-16 19:27:10 -04:00
bug174.go
bug175.go
bug176.go	cmd/gc: suppress array index error caused by a previously reported error	2014-03-29 15:45:40 +01:00
bug177.go
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bug255.go	cmd/gc: say 'non-constant array bound' instead of 'invalid array bound'	2014-09-16 10:21:54 -04:00
bug256.go
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bug299.go	cmd/gc: drop parenthesization restriction for receiver types	2014-06-25 09:57:48 -04:00
bug300.go
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bug370.go
bug371.go	cmd/gc: disallow call of *T method using **T variable	2014-10-20 22:04:12 -04:00
bug372.go
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bug374.go
bug375.go
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bug385_32.go	test: enable bug385_32 test on amd64p32.	2014-03-20 07:28:24 +01:00
bug385_64.go
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bug406.go	cmd/gc: implement 'for range x {'	2014-07-16 19:27:10 -04:00
bug407.go
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bug483.go	cmd/gc: record &x[0] as taking address of x, if x is an array	2014-02-15 20:01:15 -05:00
bug484.go	cmd/gc: liveness-related bug fixes	2014-03-27 14:05:57 -04:00
bug485.go	test: add test that gccgo compiled incorrectly	2014-05-06 09:01:38 -04:00
bug486.go	test: add test for gccgo comment lexing failure	2014-07-08 14:09:35 -07:00
bug487.go	test: add some tests for mismatches between call results and uses	2014-07-19 01:12:42 -07:00
bug488.go	test: add test for confusion with dot imports	2014-07-20 10:28:51 -07:00
bug489.go	test: add test for function type in function literal	2014-08-04 19:50:49 -07:00
bug490.go	test: add another test case that gccgo crashed on	2014-08-08 10:43:44 -07:00
bug491.go	cmd/gc: fix call order in array literal of slice literal of make chan	2014-09-30 12:48:47 -04:00
bug1515.go
issue887.go
issue1304.go	cmd/gc: correct handling of globals, func args, results	2014-05-15 15:34:53 -04:00
issue2615.go
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issue4232.go	cmd/gc: emit error for out-of-bounds slice of constant string	2014-09-25 13:24:43 -04:00
issue4251.go
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issue4388.go	runtime: use reflect.call during panic instead of newstackcall	2014-09-05 16:51:45 -04:00
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issue5793.go	cmd/gc: allow append and complex builtins to accept 2-result call expression as first argument.	2014-03-05 14:16:21 -05:00
issue5809.go
issue5820.go
issue5841.go
issue5856.go	runtime: use reflect.call during panic instead of newstackcall	2014-09-05 16:51:45 -04:00
issue5910.go
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issue6402.go	cmd/gc: fix spurious 'use of untyped nil' error	2014-03-27 18:47:00 +01:00
issue6403.go	cmd/gc: fix spurious 'const initializer is not a constant' error	2014-03-24 20:36:42 +01:00
issue6405.go	cmd/gc: fix spurious 'not enough arguments to return' error	2014-03-14 16:42:42 +01:00
issue6406.go
issue6500.go	cmd/gc: reject incorrect use of fallthrough.	2014-02-19 07:55:03 +01:00
issue6513.go
issue6572.go
issue6703a.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703b.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703c.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703d.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703e.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703f.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703g.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703h.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703i.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703j.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703k.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703l.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703m.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703n.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703o.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703p.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703q.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703r.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703s.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703t.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703u.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703v.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703w.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703x.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703y.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6703z.go	cmd/gc: check for initialization cycles in method values	2014-10-14 19:12:10 -07:00
issue6789.go
issue6847.go	cmd/gc: fix spurious type errors in walkselect.	2014-03-13 08:14:05 +01:00
issue6889.go	cmd/gc: avoid confusing error message "ovf in mpaddxx"	2014-04-09 08:36:27 +02:00
issue6899.go
issue6899.out
issue6902.go	cmd/gc: round floats with a large negative exponent towards zero	2014-03-24 10:10:29 -07:00
issue6964.go
issue7023.go
issue7044.go	liblink: fix bad code generated for MOVFD/MOVDF when reg > 7	2014-03-11 14:04:44 -04:00
issue7050.go	syscall: fix Write(nil) on NaCl	2014-05-20 11:38:34 -04:00
issue7083.go
issue7129.go	cmd/gc: increase specificity of errors in function call context	2014-04-11 15:57:30 +02:00
issue7150.go	cmd/gc: fix array index out of bounds error message	2014-02-19 11:29:36 -08:00
issue7153.go	cmd/gc: suppress array index error caused by a previously reported error	2014-03-29 15:45:40 +01:00
issue7214.go	cmd/gc: check duplicate keys in maps with interface{} key type	2014-04-04 16:46:23 +02:00
issue7223.go	cmd/gc: diagnose "make([]T, non-integer)" correctly.	2014-02-23 16:31:48 -05:00
issue7272.go
issue7310.go	cmd/gc: fix internal crash	2014-03-03 19:55:40 -05:00
issue7316.go	cmd/gc: alias more variables during register allocation	2014-05-12 17:10:36 -04:00
issue7346.go	cmd/gc: use a register to checknil constants.	2014-03-04 08:18:17 +01:00
issue7366.go	cmd/gc: fix walkcompare bugs.	2014-02-24 19:51:59 +01:00
issue7405.go	cmd/6g, cmd/8g: skip CONVNOP nodes in bgen.	2014-03-20 22:22:37 +01:00
issue7419.go	cmd/gc: check exponent overflow and underflow in mparith	2014-03-19 05:48:00 +01:00
issue7525.go	cmd/gc: fix error check for self-referential array type.	2014-03-17 20:26:19 -07:00
issue7538a.go	cmd/gc: ignore blank (_) labels in label declarations	2014-04-09 08:34:17 +02:00
issue7538b.go	cmd/gc: ignore blank (_) labels in label declarations	2014-04-09 08:34:17 +02:00
issue7547.go	cmd/gc: compute size of keys & values before making map bucket	2014-04-04 12:58:19 -07:00
issue7550.go	runtime: check that new slice cap doesn't overflow	2014-04-03 13:44:44 +11:00
issue7590.go	test: add extra test case for issue 7590	2014-03-20 11:46:45 -07:00
issue7648.go	cmd/gc: fix spurious "bad negated constant" for complex constants.	2014-04-01 02:55:38 -04:00
issue7675.go	cmd/gc: fewer errors for wrong argument count	2014-04-16 22:42:09 -04:00
issue7690.go	runtime: fix line number in first stack frame in printed stack trace	2014-10-29 15:14:24 -04:00
issue7742.go	cmd/gc: fix typo in ordermapassign	2014-04-11 15:28:37 +02:00
issue7760.go	cmd/gc: disallow pointer constants	2014-08-15 11:33:31 -07:00
issue7794.go	cmd/gc: fix segfault in isgoconst.	2014-04-16 23:12:06 -04:00
issue7863.go	test: expand issue7863 test	2014-05-27 21:53:39 -07:00
issue7867.go	cmd/gc: don't give credit for NOPs during register allocation	2014-05-09 09:55:17 -07:00
issue7884.go	test: test issue 7884 (already fixed)	2014-05-20 11:42:25 -04:00
issue7944.go	cmd/gc: fix liveness vs regopt mismatch for input variables	2014-05-12 17:19:02 -04:00
issue7995.go	cmd/gc: correct handling of globals, func args, results	2014-05-15 15:34:53 -04:00
issue7995b.go	cmd/gc: correct handling of globals, func args, results	2014-05-15 15:34:53 -04:00
issue7996.go	cmd/gc: fix duplicate map key check	2014-05-15 15:34:37 -04:00
issue7997.go	cmd/gc: fix two select temporary bugs	2014-05-15 19:16:18 -04:00
issue7998.go	cmd/gc: fix two select temporary bugs	2014-05-15 19:16:18 -04:00
issue8004.go	runtime: make scan of pointer-in-interface same as scan of pointer	2014-05-15 15:53:36 -04:00
issue8011.go	cmd/gc: fix <-<-expr	2014-05-19 15:08:04 -04:00
issue8017.go	cmd/gc: don't walk static nodes generated by anylit.	2014-09-15 18:31:47 +02:00
issue8028.go	cmd/gc: fix race compilation failure 'non-orig name'	2014-05-27 23:59:27 -04:00
issue8036.go	cmd/6g: treat vardef-initialized fat variables as live at calls	2014-05-30 16:41:58 -04:00
issue8039.go	cmd/gc: fix defer copy(x, <-c)	2014-05-27 23:59:06 -04:00
issue8047.go	runtime: add test for issue 8047.	2014-06-11 20:34:46 -04:00
issue8047b.go	runtime: fix defer of nil func	2014-06-12 16:34:36 -04:00
issue8048.go	runtime: make continuation pc available to stack walk	2014-05-31 10:10:12 -04:00
issue8060.go	cmd/gc: generate type alg after calling dowidth.	2014-09-15 18:24:16 +02:00
issue8073.go	cmd/gc: fix conversion of runtime constant	2014-05-27 21:38:19 -04:00
issue8074.go	test/fixedbugs: fix typo in comment	2014-06-29 20:34:35 +10:00
issue8076.go	cmd/gc: fix infinite loop in nil check removal	2014-05-27 23:58:49 -04:00
issue8079.go	test: add test for gccgo-specific issue 8079	2014-10-13 12:33:45 -07:00
issue8132.go	runtime: fix correctness test at end of traceback	2014-06-01 13:57:46 -04:00
issue8139.go	runtime: fix 1-byte return during x.(T) for 0-byte T	2014-06-02 21:06:30 -04:00
issue8155.go	cmd/6g: fix stack zeroing on native client	2014-06-05 16:40:23 -04:00
issue8158.go	runtime: fix panic stack during runtime.Goexit during panic	2014-06-06 16:52:14 -04:00
issue8280.go	cmd/gc: fix import of package with var func returning _	2014-09-24 16:53:34 -04:00
issue8311.go	cmd/gc: print x++ (not x += 1) in errors about x++	2014-09-25 13:13:02 -04:00
issue8325.go	cmd/6g, cmd/8g: fix, test byte-sized magic multiply	2014-08-11 15:24:36 -04:00
issue8336.go	cmd/gc: fix order of channel evaluation of receive channels	2014-08-25 07:05:45 -04:00
issue8347.go	test: add test for issue8347	2014-07-18 20:59:55 -04:00
issue8475.go	cmd/gc: comma-ok assignments produce untyped bool as 2nd result	2014-08-11 16:11:55 -07:00
issue8507.go	cmd/gc: avoid infinite recursion on invalid recursive type	2014-09-25 13:08:37 -04:00
issue8612.go	test: add test that caused gccgo to crash on valid code	2014-08-28 19:51:21 -07:00
issue8761.go	cmd/gc: fix call order in array literal of slice literal of make chan	2014-09-30 12:48:47 -04:00
issue8947.go	cmd/gc: synthesize zeroed value for non-assignment context	2014-10-24 10:27:39 -04:00
issue8961.go	cmd/gc: emit code for extern = <N>	2014-10-20 15:59:10 +01:00
issue9006.go	cmd/gc: fix internal compiler error in struct compare	2014-10-28 23:22:46 -04:00
issue9110.go	runtime: fix sudog leak	2014-11-16 16:44:45 -05:00