Issue 1:
GOARCH=386

$ hg identify
b950f00ad6f1 tip

changeset: 7774:b950f00ad6f1
tag: tip
user: Russ Cox <rsc@golang.org>
date: Tue Mar 15 22:33:57 2011 -0400
summary: gofix: procattr

unexpected fault address 0xb8002000
throw: fault

[signal 0xb code=0x1 addr=0xb8002000 pc=0x80525c0]

runtime.throw+0x43 /home/bradfitz/go/src/pkg/runtime/runtime.c:102
runtime.throw(0x829d90e, 0xb8002000)
runtime.sigpanic+0xc7 /home/bradfitz/go/src/pkg/runtime/linux/thread.c:294
runtime.sigpanic()
scanblock+0xe2 /home/bradfitz/go/src/pkg/runtime/mgc0.c:119
scanblock(0xb7f8b0ec, 0xffffffbc, 0xffffffff)
scanstack+0x5c /home/bradfitz/go/src/pkg/runtime/mgc0.c:337
scanstack(0x186b5cc0, 0x0)
mark+0x10a /home/bradfitz/go/src/pkg/runtime/mgc0.c:386
mark()
runtime.gc+0x1db /home/bradfitz/go/src/pkg/runtime/mgc0.c:569
runtime.gc(0x1, 0x186eac50)
runfinq+0xea /home/bradfitz/go/src/pkg/runtime/mgc0.c:653
runfinq()
runtime.goexit /home/bradfitz/go/src/pkg/runtime/proc.c:180
runtime.goexit()
----- goroutine created by -----
runtime.gc /home/bradfitz/go/src/pkg/runtime/mgc0.c:515

goroutine 77 [4]:
runtime.gosched+0x6d /home/bradfitz/go/src/pkg/runtime/proc.c:594
runtime.gosched()
runtime.chanrecv+0x147 /home/bradfitz/go/src/pkg/runtime/chan.c:359
runtime.chanrecv(0x19be8900, 0xb7f8639c, 0x0, 0x0, 0x400, ...)
runtime.chanrecv1+0x3f /home/bradfitz/go/src/pkg/runtime/chan.c:421
runtime.chanrecv1(0x19be8900, 0x19eee580)
net.*pollServer·WaitRead+0x50 /home/bradfitz/go/src/pkg/net/fd.go:252
net.*pollServer·WaitRead(0x186ec800, 0x19eee580, 0x400)
net.*netFD·Read+0x1c1 /home/bradfitz/go/src/pkg/net/fd.go:359
net.*netFD·Read(0x19eee580, 0x187bf400, 0x400, 0x400, 0x0, ...)
net.*TCPConn·Read+0x6f /home/bradfitz/go/src/pkg/net/tcpsock.go:94
net.*TCPConn·Read(0x18740188, 0x187bf400, 0x400, 0x400, 0x64, ...)
crypto/tls.*block·readFromUntil+0xc5 /home/bradfitz/go/src/pkg/crypto/tls/conn.go:368
crypto/tls.*block·readFromUntil(0x18838d40, 0x186ecb80, 0x18740188, 0x5, 0x18740188, ...)
crypto/tls.*Conn·readRecord+0xf0 /home/bradfitz/go/src/pkg/crypto/tls/conn.go:448
crypto/tls.*Conn·readRecord(0x1921c140, 0x17, 0x0, 0x6000008)
crypto/tls.*Conn·Read+0xca /home/bradfitz/go/src/pkg/crypto/tls/conn.go:712
crypto/tls.*Conn·Read(0x1921c140, 0x19209000, 0x1000, 0x1000, 0x0, ...)
bufio.*Reader·fill+0x152 /home/bradfitz/go/src/pkg/bufio/bufio.go:97
bufio.*Reader·fill(0x19be6720, 0x0)
bufio.*Reader·ReadSlice+0x25a /home/bradfitz/go/src/pkg/bufio/bufio.go:267
bufio.*Reader·ReadSlice(0x19be6720, 0x186b2a0a, 0x0, 0x0, 0x0, ...)
bufio.*Reader·ReadBytes+0x86 /home/bradfitz/go/src/pkg/bufio/bufio.go:300
bufio.*Reader·ReadBytes(0x19be6720, 0x82ad40a, 0x0, 0x0, 0x0, ...)
net/textproto.*Reader·ReadLineBytes+0x3c
/home/bradfitz/go/src/pkg/net/textproto/reader.go:43
net/textproto.*Reader·ReadLineBytes(0x186b2bf0, 0x80, 0x0)
net/textproto.*Reader·ReadLine+0x29 /home/bradfitz/go/src/pkg/net/textproto/reader.go:36
net/textproto.*Reader·ReadLine(0x186b2bf0, 0x189e2200, 0x0)
http.ReadRequest+0x7f /home/bradfitz/go/src/pkg/http/request.go:431
http.ReadRequest(0x19be6720, 0x189e2200, 0x0, 0x0)
http.*conn·readRequest+0x6e /home/bradfitz/go/src/pkg/http/server.go:171
http.*conn·readRequest(0x19be66f0, 0x188897e0, 0x0, 0x0)
http.*conn·serve+0x29 /home/bradfitz/go/src/pkg/http/server.go:447
http.*conn·serve(0x19be66f0, 0x8055d3f)
runtime.goexit /home/bradfitz/go/src/pkg/runtime/proc.c:180
runtime.goexit()

----- goroutine created by -----
http.*Server·Serve+0x1cf /home/bradfitz/go/src/pkg/http/server.go:777

goroutine 81 [3]:
runtime.entersyscall+0x18 /home/bradfitz/go/src/pkg/runtime/proc.c:614
runtime.entersyscall()
syscall.Syscall+0x5 /home/bradfitz/go/src/pkg/syscall/asm_linux_386.s:21
syscall.Syscall()
syscall.Write+0x5c /home/bradfitz/go/src/pkg/syscall/zsyscall_linux_386.go:734
syscall.Write(0x5, 0x829ef10, 0x1, 0x1, 0x86aff48, ...)
os.*File·Write+0x7a /home/bradfitz/go/src/pkg/os/file.go:126
os.*File·Write(0x186ec840, 0x829ef10, 0x1, 0x1, 0x0, ...)
net.*pollServer·Wakeup+0x8a /home/bradfitz/go/src/pkg/net/fd.go:247
net.*pollServer·Wakeup(0x186ec800, 0x18d82f80)
net.*pollServer·WaitRead+0x3f /home/bradfitz/go/src/pkg/net/fd.go:251
net.*pollServer·WaitRead(0x186ec800, 0x18d82f80, 0x400)
net.*netFD·Read+0x1c1 /home/bradfitz/go/src/pkg/net/fd.go:359
net.*netFD·Read(0x18d82f80, 0x18a37000, 0x400, 0x400, 0x0, ...)
net.*TCPConn·Read+0x6f /home/bradfitz/go/src/pkg/net/tcpsock.go:94
net.*TCPConn·Read(0x187400b0, 0x18a37000, 0x400, 0x400, 0x189060f0, ...)
crypto/tls.*block·readFromUntil+0xc5 /home/bradfitz/go/src/pkg/crypto/tls/conn.go:368
crypto/tls.*block·readFromUntil(0x187a4f40, 0x186ecb80, 0x187400b0, 0x5, 0x187400b0, ...)
crypto/tls.*Conn·readRecord+0xf0 /home/bradfitz/go/src/pkg/crypto/tls/conn.go:448
crypto/tls.*Conn·readRecord(0x1921c000, 0x813a914, 0x18906300, 0x1898a960)
crypto/tls.*Conn·serverHandshake+0x1aec
/home/bradfitz/go/src/pkg/crypto/tls/handshake_server.go:239
crypto/tls.*Conn·serverHandshake(0x1921c000, 0x0, 0x0)
----- stack segment boundary -----
syscall.Syscall+0x53 /home/bradfitz/go/src/pkg/syscall/asm_linux_386.s:33
syscall.Syscall()
syscall.Write+0x5c /home/bradfitz/go/src/pkg/syscall/zsyscall_linux_386.go:734
syscall.Write(0x5, 0x829ef10, 0x1, 0x1, 0x86aff48, ...)
os.*File·Write+0x7a /home/bradfitz/go/src/pkg/os/file.go:126
os.*File·Write(0x186ec840, 0x829ef10, 0x1, 0x1, 0x0, ...)
net.*pollServer·Wakeup+0x8a /home/bradfitz/go/src/pkg/net/fd.go:247
net.*pollServer·Wakeup(0x186ec800, 0x18d82f80)
net.*pollServer·WaitRead+0x3f /home/bradfitz/go/src/pkg/net/fd.go:251
net.*pollServer·WaitRead(0x186ec800, 0x18d82f80, 0x400)
net.*netFD·Read+0x1c1 /home/bradfitz/go/src/pkg/net/fd.go:359
net.*netFD·Read(0x18d82f80, 0x18a37000, 0x400, 0x400, 0x0, ...)
net.*TCPConn·Read+0x6f /home/bradfitz/go/src/pkg/net/tcpsock.go:94
net.*TCPConn·Read(0x187400b0, 0x18a37000, 0x400, 0x400, 0x189060f0, ...)
crypto/tls.*block·readFromUntil+0xc5 /home/bradfitz/go/src/pkg/crypto/tls/conn.go:368
crypto/tls.*block·readFromUntil(0x187a4f40, 0x186ecb80, 0x187400b0, 0x5, 0x187400b0, ...)
crypto/tls.*Conn·readRecord+0xf0 /home/bradfitz/go/src/pkg/crypto/tls/conn.go:448
crypto/tls.*Conn·readRecord(0x1921c000, 0x813a914, 0x18906300, 0x1898a960)
crypto/tls.*Conn·serverHandshake+0x1aec
/home/bradfitz/go/src/pkg/crypto/tls/handshake_server.go:239
crypto/tls.*Conn·serverHandshake(0x1921c000, 0x0, 0x0)
----- stack segment boundary -----
crypto/tls.*Conn·Handshake+0xcd /home/bradfitz/go/src/pkg/crypto/tls/conn.go:752
crypto/tls.*Conn·Handshake(0x1921c000, 0x0, 0x0)
crypto/tls.*Conn·Read+0x43 /home/bradfitz/go/src/pkg/crypto/tls/conn.go:704
crypto/tls.*Conn·Read(0x1921c000, 0x18a35000, 0x1000, 0x1000, 0x0, ...)
bufio.*Reader·fill+0x152 /home/bradfitz/go/src/pkg/bufio/bufio.go:97
bufio.*Reader·fill(0x19ec13c0, 0x0)
bufio.*Reader·ReadSlice+0x25a /home/bradfitz/go/src/pkg/bufio/bufio.go:267
bufio.*Reader·ReadSlice(0x19ec13c0, 0xa, 0x0, 0x0, 0x0, ...)
bufio.*Reader·ReadBytes+0x86 /home/bradfitz/go/src/pkg/bufio/bufio.go:300
bufio.*Reader·ReadBytes(0x19ec13c0, 0x86afd0a, 0x0, 0x0, 0x0, ...)
net/textproto.*Reader·ReadLineBytes+0x3c
/home/bradfitz/go/src/pkg/net/textproto/reader.go:43
net/textproto.*Reader·ReadLineBytes(0x18740e50, 0x80, 0x0)

net/textproto.*Reader·ReadLine+0x29 /home/bradfitz/go/src/pkg/net/textproto/reader.go:36
net/textproto.*Reader·ReadLine(0x18740e50, 0x18c18300, 0x186ce4c0)
http.ReadRequest+0x7f /home/bradfitz/go/src/pkg/http/request.go:431
http.ReadRequest(0x19ec13c0, 0x18c18300, 0x0, 0x0)
http.*conn·readRequest+0x6e /home/bradfitz/go/src/pkg/http/server.go:171
http.*conn·readRequest(0x19ec1390, 0x0, 0x0, 0x0)
http.*conn·serve+0x29 /home/bradfitz/go/src/pkg/http/server.go:447
http.*conn·serve(0x19ec1390, 0x187620d0)
runtime.goexit /home/bradfitz/go/src/pkg/runtime/proc.c:180
runtime.goexit()
----- goroutine created by -----
http.*Server·Serve+0x1cf /home/bradfitz/go/src/pkg/http/server.go:777

goroutine 2 [1]:
runtime.gosched+0x6d /home/bradfitz/go/src/pkg/runtime/proc.c:594
runtime.gosched()
runtime.exitsyscall+0x6e /home/bradfitz/go/src/pkg/runtime/proc.c:659
runtime.exitsyscall()
syscall.Syscall6+0x57 /home/bradfitz/go/src/pkg/syscall/asm_linux_386.s:60
syscall.Syscall6()
syscall.EpollWait+0x74 /home/bradfitz/go/src/pkg/syscall/zsyscall_linux_386.go:200
syscall.EpollWait(0x6, 0x1879ca20, 0x1, 0x1, 0xffffffff, ...)
net.*pollster·WaitFD+0x134 /home/bradfitz/go/src/pkg/net/fd_linux.go:116
net.*pollster·WaitFD(0x186b25b0, 0x0, 0x0, 0x18d82f80, 0x72, ...)
net.*pollServer·Run+0xc8 /home/bradfitz/go/src/pkg/net/fd.go:207
net.*pollServer·Run(0x186ec800, 0x0)
runtime.goexit /home/bradfitz/go/src/pkg/runtime/proc.c:180
runtime.goexit()
----- goroutine created by -----
net.newPollServer+0x346 /home/bradfitz/go/src/pkg/net/newpollserver.go:39

goroutine 1 [4]:
runtime.gosched+0x6d /home/bradfitz/go/src/pkg/runtime/proc.c:594
runtime.gosched()
runtime.chanrecv+0x147 /home/bradfitz/go/src/pkg/runtime/chan.c:359
runtime.chanrecv(0x186ccd80, 0xb7f8386c, 0x0, 0x0, 0x82a081c, ...)
runtime.chanrecv1+0x3f /home/bradfitz/go/src/pkg/runtime/chan.c:421
runtime.chanrecv1(0x186ccd80, 0x186e7300)
net.*pollServer·WaitRead+0x50 /home/bradfitz/go/src/pkg/net/fd.go:252
net.*pollServer·WaitRead(0x186ec800, 0x186e7300, 0x0)
net.*netFD·accept+0x2fe /home/bradfitz/go/src/pkg/net/fd.go:584
net.*netFD·accept(0x186e7300, 0x80d3b33, 0x0, 0x0, 0x0, ...)
net.*TCPListener·AcceptTCP+0x56 /home/bradfitz/go/src/pkg/net/tcpsock.go:261
net.*TCPListener·AcceptTCP(0x186b2900, 0x1, 0x0, 0x0)
net.*TCPListener·Accept+0x39 /home/bradfitz/go/src/pkg/net/tcpsock.go:271
net.*TCPListener·Accept(0x186b2900, 0x0, 0x0, 0x0, 0x0, ...)
crypto/tls.*Listener·Accept+0x49 /home/bradfitz/go/src/pkg/crypto/tls/tls.go:44
crypto/tls.*Listener·Accept(0x187620d0, 0x0, 0x0, 0x0, 0x0, ...)
http.*Server·Serve+0xb5 /home/bradfitz/go/src/pkg/http/server.go:763
http.*Server·Serve(0x186ec980, 0x186ec900, 0x187620d0, 0x0, 0x0, ...)
http.Serve+0x57 /home/bradfitz/go/src/pkg/http/server.go:727
http.Serve(0x186ec900, 0x187620d0, 0x186ec920, 0x186ebf80, 0x186ebf80, ...)
camli/webserver.*Server·Serve+0x41f
/home/bradfitz/hack/camlistore/server/go/webserver/webserver.go:117
camli/webserver.*Server·Serve(0x186ebf80, 0x8192e1c)
main.main+0x412 /home/bradfitz/hack/camlistore/server/go/blobserver/camlistored.go:279
main.main()
runtime.mainstart+0xf /home/bradfitz/go/src/pkg/runtime/386/asm.s:93
runtime.mainstart()
runtime.goexit /home/bradfitz/go/src/pkg/runtime/proc.c:180
runtime.goexit()
----- goroutine created by -----
_rt0_386+0xc1 /home/bradfitz/go/src/pkg/runtime/386/asm.s:80

Issue 2:
[as mentioned by manveru in #golang-nuts]

Run the following piece of code through gofmt.
The text inside the comment is indented.
Run that text through gofmt again.
The text inside the comment is indented one more time.

At the least, gofmt should be idempotent.
I think it should also preserve indentation inside comments,
but that's more arguable.

package main

func main() {
/*
something like this.
*/
}