Hi Paolo, Thanks for the reply.
I've disabled exec-shield and it's made no difference. (sysctl -w kernel.exec-shield=0). I am able to run my RH73 UMLs in TT mode OK on the x86-64 machine. (This may be of no interest though... different kernel etc. etc.): Red Hat Linux release 7.3 (Valhalla) Kernel 2.4.24-1um on an x86_64 vm0 login: When run in SKAS mode I get: Kernel panic: kernel BUG at memory.c:377! which is expected at this stage of proceedings. I see in the dev mail list that Alessio describes, what appears to be, an identical situation with debian when he uses 2.6.12 + bs7. Namely he can also run sh, bash, ksh builtins, however anytime the system attempts to spawn another task it all hangs up. SMP is off. Here are the first few lines of the .config used on the x86_64 machine which compiled the 32 bit kernel. # # Automatically generated make config: don't edit # Linux kernel version: 2.6.12-bs7 # Wed Jul 20 17:08:16 2005 # CONFIG_GENERIC_HARDIRQS=y CONFIG_UML=y CONFIG_MMU=y CONFIG_UID16=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_CALIBRATE_DELAY=y # # UML-specific options # CONFIG_MODE_TT=y CONFIG_MODE_SKAS=y CONFIG_UML_X86=y # CONFIG_64BIT is not set CONFIG_TOP_ADDR=0xc0000000 # CONFIG_3_LEVEL_PGTABLES is not set CONFIG_ARCH_HAS_SC_SIGNALS=y CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y CONFIG_LD_SCRIPT_STATIC=y # CONFIG_NET is not set CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set # CONFIG_HOSTFS is not set # CONFIG_HPPFS is not set # CONFIG_MCONSOLE is not set # CONFIG_HOST_2G_2G is not set # CONFIG_SMP is not set CONFIG_NEST_LEVEL=0 CONFIG_KERNEL_HALF_GIGS=1 # CONFIG_HIGHMEM is not set CONFIG_KERNEL_STACK_ORDER=2 # CONFIG_UML_REAL_TIME_CLOCK is not set # # Code maturity level options # CONFIG_EXPERIMENTAL=y CONFIG_CLEAN_COMPILE=y CONFIG_BROKEN_ON_SMP=y CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup # CONFIG_LOCALVERSION="" Regards Phill. ----- Original Message ----- From: "Blaisorblade" <[EMAIL PROTECTED]> To: <user-mode-linux-user@lists.sourceforge.net> Cc: "Phill Wombat" <[EMAIL PROTECTED]> Sent: Friday, July 22, 2005 9:07 AM Subject: Re: [Fwd: Re: [uml-user] x86_64 UML won't boot on IBM x336] > On Wednesday 20 July 2005 01:48, Phill Wombat wrote: > > Hi Paolo, > > > This is where I am, and probably reflects the current state of play with > > UML, is this how it should be as you understand things right now?: > No, case 2 and 4 are unexpected failures, the rest is as expected. Fix case 2 > and you'll probably get #4 fixed. > > > 1) 32 bit SMP dual machine. SKAS mode > Ok, it works... > > > ==================================================================== > > 2) 32 bit SMP dual machine. TT mode > > > > > Adding 19587072 bytes to physical memory to account for exec-shield gap > This is interesting - have you tried if disabling exec-shield on the host (can > be done via /proc/sys/<something>) makes any difference? There was a problem > some time ago about this, it should be fixed but I'm not that sure. > > > INIT: version 2.85 booting > > > Hangs here in init. > You have not compiled SMP mode in, I hope? That's not very used at the moment > so it could have problems... > > ==================================================================== > > 4) 32 bit UML on 64 bit IBM x336. TT mode. > > > Identical to case 2) > For both cases: have you tried running a different filesystem? I.e. not FC4? > I've just seen you worked around the NPTL issue, but still something may be > wrong. > > > ==================================================================== > > 3) 32 bit UML on 64 bit IBM x336. SKAS mode. NOT YET SUPPORTED if I > > understand correctly. > Exactly... > > > ==================================================================== > > 5) 64 bit UML on 64 bit IBM x336. SKAS mode. NOT TESTED > Not supported. > > ==================================================================== > > 6) 64 bit UML on 64 bit IBM x336. TT mode. NOT TESTED > Should work (after solving the issue of case 2), which probably happens there > as well) but you'll need a pure 64-bits root_fs, because UML doesn't yet > support 32-bit emulation for guest binaries. > -- > 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 > ------------------------------------------------------- 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 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
