Date: Sun, 09 Oct 2011 15:48:57 +0200 From: =?UTF-8?B?VsOhY2xhdiBaZW1hbg==?= <v.haisman@sh.cvut.cz> To: freebsd-stable@freebsd.org Subject: Re: valgrind on FreeBSD? Message-ID: <4E91A649.5060207@sh.cvut.cz> In-Reply-To: <4E91A0C3.7030305@sh.cvut.cz> References: <4E8CC6BC.9040605@sh.cvut.cz> <20111006064038.CFB34B852@mail.bitblocks.com> <4E91A0C3.7030305@sh.cvut.cz>
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Václav Zeman wrote, On 9.10.2011 15:25: > Bakul Shah wrote, On 6.10.2011 8:40: >> On Wed, 05 Oct 2011 23:06:04 +0200 =?UTF-8?B?VsOhY2xhdiBaZW1hbg==?= <v.haisman@sh.cvut.cz> wrote: >>> Hi. >>> >>> No matter what I try, valgrind on 7.3-STABLE is giving me this, both Valgrind >>> ports: >>> >>> valgrind: Startup or configuration error: >>> Can't establish current working directory at startup >>> valgrind: Unable to start up properly. Giving up. >>> >>> What do I need to do to make it work? >> >> Try running valgrind under ktrace (& view with kdump). That >> will tell you what directory it is trying to access or what >> syscall fails and why. > Hi. > > So I have done that and more. I have first updated from 7.3 to 8.2 (RELENG_8 > actually). I have not managed to recompile all of the installed Ports yet, > but I made sure to recompile valgrind and its dependencies. The same thing > has happened! > > As I have said, I have done the ktrace and here is the interesting bit: > > 78028 valgrind NAMI "/usr/local/lib/valgrind/memcheck-amd64-freebsd" > 78028 memcheck-amd64-free RET execve 0 > 78028 memcheck-amd64-free CALL getpid > 78028 memcheck-amd64-free RET getpid 78028/0x130cc > 78028 memcheck-amd64-free CALL > __sysctl(0x39a91450,0x4,0x389a3800,0x39a91468,0,0) > 78028 memcheck-amd64-free SCTL "kern.proc.vmmap.78028" > 78028 memcheck-amd64-free RET __sysctl 0 > 78028 memcheck-amd64-free CALL > mmap(0x400009000,0x400000,PROT_READ|PROT_WRITE|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_ANON,0xffffffffffffffff,0) > 78028 memcheck-amd64-free RET mmap 17179906048/0x400009000 > 78028 memcheck-amd64-free CALL getrlimit(RLIMIT_DATA,0x39e6a780) > 78028 memcheck-amd64-free RET getrlimit 0 > 78028 memcheck-amd64-free CALL setrlimit(RLIMIT_DATA,0x39a919e0) > 78028 memcheck-amd64-free RET setrlimit 0 > 78028 memcheck-amd64-free CALL getrlimit(RLIMIT_STACK,0x39e6a790) > 78028 memcheck-amd64-free RET getrlimit 0 > 78028 memcheck-amd64-free CALL __getcwd(0x3882d700,0x3ff) > 78028 memcheck-amd64-free NAMI ".." > 78028 memcheck-amd64-free RET __getcwd -1 errno 2 No such file or directory > 78028 memcheck-amd64-free CALL write(0x2,0x3830b060,0x6c) > 78028 memcheck-amd64-free GIO fd 2 wrote 108 bytes > "valgrind: Startup or configuration error: > valgrind: Can't establish current working directory at startup > " > 78028 memcheck-amd64-free RET write 108/0x6c > 78028 memcheck-amd64-free CALL write(0x2,0x3830b060,0x33) > 78028 memcheck-amd64-free GIO fd 2 wrote 51 bytes > "valgrind: Unable to start up properly. Giving up. > " > 78028 memcheck-amd64-free RET write 51/0x33 > 78028 memcheck-amd64-free CALL exit(0x1) > > Now what? Why would the __getcwd call be failing with "No such file or > directory"? > It is the nullfs! I have /home mounted using nullfs to /usr/home: /usr/home /home nullfs rw,multilabel,acls 0 0 When I run valgrind from the /usr based directory, it works: shell::wilx:/usr/home/users/wilx/tmp/yttool> valgrind --tool=memcheck ./yttool ==34679== Memcheck, a memory error detector ==34679== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==34679== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info ==34679== Command: ./yttool ==34679== ==34679== ==34679== HEAP SUMMARY: ==34679== in use at exit: 20,395 bytes in 119 blocks ==34679== total heap usage: 6,719 allocs, 6,600 frees, 716,787 bytes allocated ==34679== ==34679== LEAK SUMMARY: ==34679== definitely lost: 0 bytes in 0 blocks ==34679== indirectly lost: 0 bytes in 0 blocks ==34679== possibly lost: 134 bytes in 4 blocks ==34679== still reachable: 20,261 bytes in 115 blocks ==34679== suppressed: 0 bytes in 0 blocks ==34679== Rerun with --leak-check=full to see details of leaked memory ==34679== ==34679== For counts of detected and suppressed errors, rerun with: -v ==34679== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) But when I run it from the nullfs mount, it fails: shell::wilx:/usr/home/users/wilx/tmp/yttool> cd $HOME/tmp/yttool shell::wilx:~/tmp/yttool> valgrind --tool=memcheck ./yttool valgrind: Startup or configuration error: valgrind: Can't establish current working directory at startup valgrind: Unable to start up properly. Giving up. -- VZ
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