Re: XCode 3.1 frequently hangs
Re: XCode 3.1 frequently hangs
- Subject: Re: XCode 3.1 frequently hangs
- From: Aaron Burghardt <email@hidden>
- Date: Wed, 30 Jul 2008 06:42:33 -0400
Before you uninstall/reinstall, I have another suggestion. Since it
is hanging on an lstat() call, it appears to be an issue that can be
diagnosed at the file system level. Try using fs_usage to determine
the path that is the problem, using my Terminal example below. WIth
fs_usage running, recreate the symptom. When Xcode hangs, go back to
the Terminal window and see what the last file path is. Since
fs_usage is reporting the amount of time spent in the system call, I
expect the lstat() that is causing the hang won't have returned yet.
In that case, the menu command View -> Clear Scrollback will clear the
Terminal window, and when the call does return, it should be at the
top of the Terminal window buffer. The last numeric column is the
time spent in the system call, so that will help determine which
lstat() is the problem.
Also, looking at the backtrace, it appears Xcode is indexing the file
you just edited. Can you comment out any single #include and affect
the symptom?
# Get Xcode's PID
$ ps aux | grep Xcode.app
aburgh 48965 0.0 4.6 774920 191568 ?? S Mon09AM
20:33.92 /Developer/Applications/Xcode.app/Contents/MacOS/Xcode -
psn_0_684199
aburgh 58869 0.0 0.0 599780 468 s005 R+ 6:01AM 0:00.00
grep Xcode.app
# Use the PID to limit fs_usage's output
$ sudo fs_usage -f filesys 48965 | grep lstat
06:08:10 lstat k/System/Library/Frameworks/
IOKit.framework/Versions/A/Headers/usb/IOUSBLib.h 0.000021 Xcode
06:08:10 lstat /Volumes/test/MyProject/usbtest-
Info.plist 0.000015 Xcode
06:08:10 lstat /Volumes/test/
MyProject
0.000004 Xcode
06:08:10 lstat sers/aburgh/Desktop/Another USB
Notification Example/USBNotificationExample.c 0.000010 Xcode
06:08:10 lstat /System/Library/Frameworks/IOKit.framework/
Versions/A/Headers/IOCFPlugIn.h 0.000011 Xcode
06:08:10 lstat /System/Library/Frameworks/IOKit.framework/
Versions/A/Headers/IOReturn.h 0.000009 Xcode
Aaron
On Jul 30, 2008, at 12:16 AM, Larry Emdur wrote:
On Tue, Jul 29, 2008 at 1:18 PM, Andrew Pontious
<email@hidden> wrote:
On Jul 26, 2008, at 1:35 PM, Larry Emdur wrote:
The most interesting part of the sample is this:
1070 -[XCInvocationQueue
_processInvocationsInThreadSlotNumber:]
1070 -[XCInvocationQueue
_processNextInvocationInThreadSlotNumber:]
1070 -[NSInvocation invoke]
1070 __invoking___
1070 -[PBXProjectIndex _indexBackground:]
1070 -[PBXDevKitIndexingEngine
indexFileAtAbsolutePath:withSettings:]
1070 ObjcParse::ObjcParse(TokenStream*,
ParseErrorStream*, ObjcActions*, int)
1070 ObjcParse::nextToken()
1070 Cpp::nextToken()
1070 Cpp::nextToken0()
1070 Cpp::header(Token*, TokenType)
1070 Cpp::sysStream(char const*,
TokenType, signed char)
1070
PBXIndexCppActions::getSystemPathForHeader(char const*, char*)
1070 -
[NSString(TSPathUtilities)
PBX_stringByResolvingSymlinksInPath]
1070 -
[NSString(NSPathUtilities)
_stringByResolvingSymlinksInPathUsingCache:]
1070 lstat
1070 lstat
It is 100% reproducible. I never saw this with xcode v3.0.
This code generally hasn't changed between 3.0 and 3.1.
Can you try 3.0 on the same machine with the same projects, and see
if it
reoccurs?
Sure, where can I download 3.0?
Is your source code accessed over a network?
No, it is all local (on a single disk)
Thanks,
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