On Tue, Jan 21, 2014 at 04:57:39AM -0500, Mike Frysinger wrote: > > > ------------[ cut here ]------------ > > > Kernel BUG at 0029abd6 [verbose debug info unavailable] > > > specification exception: 0006 [#1] SMP > > > Modules linked in: > > > CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.13.0 #4 > > > task: 005a16c8 ti: 00592000 task.ti: 00592000 > > > Krnl PSW : 070ce000 8029abd6 (lockref_get+0x3e/0x9c) > > > > > > R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 > > > > > > Krnl GPRS: 00000000 00000002 00000001 00000000 > > > > > > 00000000 00000001 78f05a60 00000000 > > > 004b6b7e 00400000 78f05a60 78e01870 > > > 78e018c0 0041c038 00593e28 00593e08 > > > > > > Krnl Code: 8029abcc: a71a0001 ahi %r1,1 > > > > > > 8029abd0: 1852 lr %r5,%r2 > > > > > > #8029abd2: bb40f064 cds %r4,%r0,100(%r15) > > > > > > >8029abd6: 1943 cr %r4,%r3 > > > > Yep, that's a compare and swap on not proper aligned address on > > the stack. Which indicates that our cmpxhg64 on 32 bit is broken > > in multiple ways. > > > > The patch below will fix this crash, but not the statfs issue. > > hmm, doesn't seem to work for me. don't get a crash, just a "virtual machine > is placed in CP mode due to a SIGP initial C". whatever that means :). Ah, that probably happened because the kernel failed to mount the root file system and killed all CPUs before printing a nice error message. -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html