Re: 2.6.12-bs7 vs 2.6.12-bb8
Blaisorblade <blaisorblade <at> yahoo.it>
2005-08-04 18:48:14 GMT
On Thursday 04 August 2005 20:56, antoine wrote:
> On Wed, 2005-08-03 at 18:40 +0100, antoine wrote:
> > > > I've just stared testing your latest patches on a amd64 box running
> > > > 2.6.13-rc3-git4, bb8 seems to run (so far)
> > >
> > > Using TT or SKAS0 mode? And is this specific to that host release wrt
> > > 2.6.12?
> > >
> > > > but bs7 comes up with:
> >
> > (...)
> > bs works fine on 2.6.13-rc4 now, must have been a host bug?
> > But all guest 64-bit kernels are still loosing memory fast, gentoo's
> > "emerge --sync" is enough to eat 300+ MB of ram! (in about 5 minutes)
>
> I can get a similar behavior from 2.6.12.3-bs9 guest (compiled with
> SUBARCH=i386) on a 2.6.13-rc5 host!
Ehr - can you bug Jeff for these? After trying on a 2.6.12.3 host - I wouldn't
call -rc5 "stable", by just looking at the changelog *after* the release.
I'm going to be *offline* so unable to handle this stuff.
> The strange thing is that the same config file, same guest source but
> compiled without SUBARCH (ie: regular 64-bit guest) works ok (well still
> loosing memory fast - but at least it runs)
>
> strace ./vmlinux-2.6.12.3-bs9-x86 gives:
> (...)
Which test is it performing when it locks up? It is printing "ok" below, so...
> open("/home/antoine/.uml/pX0UwE/pid", O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE,
> 0644) = 6
> getpid() = 18680
> write(6, "18680\n", 6) = 6
> close(6) = 0
> mprotect(0xa0256000, 8192, PROT_READ|PROT_WRITE|PROT_EXEC) = 0
//Here
> write(1, "OK\n", 3) = 3
> rt_sigaction(SIGPIPE, {0x1000000000000001, [], 0}, {SIG_DFL}, 8) = 0
> socketcall(0x8, 0xffffcb70) = 0
> fcntl64(6, F_SETFD, FD_CLOEXEC) = 0
> fcntl64(7, F_SETFD, FD_CLOEXEC) = 0
> rt_sigaction(SIGWINCH, {0x10000000a0019a60, [], 0}, {SIG_DFL}, 8) = 0
> getpid() = 18680
> clone(child_stack=0xa0257fd4, flags=CLONE_FILES|SIGCHLD) = 18681
> waitpid(18681, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGSTOP}], WSTOPPED) =
> 18681
> --- SIGCHLD (Child exited) <at> 0 (0) ---
> ptrace(0x15 /* PTRACE_??? */, 18681, 0, 0x1) = 0
> ptrace(PTRACE_CONT, 18681, 0, SIG_0) = 0
> rt_sigaction(SIGSEGV, {0x10000000a0019be0, [], 0}, {SIG_DFL}, 8) = 0
> rt_sigaction(SIGUSR1, {0x10000000a00184f0, [], 0}, {SIG_DFL}, 8) = 0
Ok, the below is actually a 32-bit "-1" value (not verified), so it shouldn't
be bogus.
> waitpid(4294967295, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGSEGV}],
> WSTOPPED) = 18681
> --- SIGCHLD (Child exited) <at> 0 (0) ---
> ptrace(PTRACE_CONT, 18681, 0, SIGSEGV) = 0
Same here
> waitpid(4294967295, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGUSR1}],
> WSTOPPED) = 18681
> --- SIGCHLD (Child exited) <at> 0 (0) ---
The below *is* IMHO bogus (munmap from 0 is useless).
> munmap(0, 2692743168) = 0
> --- SIGSEGV (Segmentation fault) <at> 0 (0) ---
> --- SIGSEGV (Segmentation fault) <at> 0 (0) ---
> +++ killed by SIGSEGV +++
> Antoine
--
--
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade
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> I've succeeded in fixing even this... Can I get your fix for the further test? > Is that compiled with NPTL / TLS support? Has 2.3.2 any TLS support at all? It is said to support NPTL 0.29. Thanks, Tom ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
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