On Fri, Nov 09, 2012 at 08:57:58PM -0800, Michel Lespinasse wrote: > On Fri, Nov 9, 2012 at 8:51 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > > On Fri, Nov 09, 2012 at 08:36:53PM -0800, Michel Lespinasse wrote: > >> Hi, > >> > >> I'm having an issue booting current linux-next kernels on my test > >> machines. Userspace crashes when it's supposed to pivot to the rootfs. > >> With the loglevel=8 kernel parameter, the last messages I see are: > >> > >> Checking root filesystem in pivot_root init. > >> [ 6.252717] usb 2-1: link qh256-0001/ffff880853ec9ab8 start 1 [1/0 us] > >> [ 6.259419] hub 2-1:1.0: state 7 ports 8 chg 0000 evt 0000 > >> [ 6.292302] traps: hotplug[1633] general protection ip:f767c06b > >> sp:ffbb2d1c error:0 in libc-2.3.6.so[f7652000+126000] > >> > >> I ran a bisection and it turns out that > >> e52d03a3775841cc68d0ea9d86f2f09b603c41e6 (x86, um: switch to generic > >> fork/vfork/clone) is the commit breaking my setup. When reverting > >> that, I am able to boot linux-next (or mmotm, which is what I was > >> trying to do in the first place) without issues. > >> > >> Sorry for not having a more complete root cause at the moment - I'm > >> lacking some context as to what the change is trying to do. > > > > Hmm... 32bit native, presumably? > > This is running on a x86_64 system; I believe the userspace binaries > should be 64-bit as well. Curious... After the second look at that sucker, it seems that you have 32bit hotplug(8) in there, and yes, it's clearly a 64bit kernel... Could you check which binary it is and whether it's really 32bit or not? -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html