Tejun, > Re: linux-next: Tree for March 17 I'm getting this on boot on powerpc once my init scripts are running: --- Unable to handle kernel paging request for data at address 0x00000240 Faulting instruction address: 0xc0000000001a3138 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=1024 NUMA parries last sysfs file: /sys/kernel/uevent_seqnum Modules linked in: NIP: c0000000001a3138 LR: c0000000001a2e10 CTR: 0000000000000000 REGS: c00000007e69f520 TRAP: 0300 Tainted: G W (2.6.38-next-20110317-mikey) MSR: 9000000000009032 <EE,ME,IR,DR> CR: 24000844 XER: 02000000 DAR: 0000000000000240, DSISR: 40000000 TASK = c00000007e829f00[1342] 'fsck' THREAD: c00000007e69c000 CPU: 0 GPR00: c0000000001a2e10 c00000007e69f7a0 c000000000ac8690 0000000000000000 GPR04: 0000000000000001 0000000000000000 0000000000000000 0000000000000000 GPR08: c00000007e0b7208 0000000000000000 0000000000000000 ffffffffffffffff GPR12: 0000000024000842 c00000000ff60000 0000000000000000 0000000010005b14 GPR16: 0000000010005e14 00000000100162f0 00000000100162d4 0000000000000000 GPR20: 00000000100162d8 00000000100162b4 0000000000000000 0000000000000000 GPR24: c00000007e69f810 fffffffffffffffa 0000000000000000 c00000007d023ba0 GPR28: 000000000000001d 0000000000000000 c000000000a1f080 c00000007d023b80 NIP [c0000000001a3138] .__blkdev_get+0x3b0/0x40c LR [c0000000001a2e10] .__blkdev_get+0x88/0x40c Call Trace: [c00000007e69f7a0] [c0000000001a2e10] .__blkdev_get+0x88/0x40c (unreliable) [c00000007e69f860] [c0000000001a3224] .blkdev_get+0x90/0x210 [c00000007e69f910] [c00000000016498c] .__dentry_open+0x20c/0x370 [c00000007e69f9d0] [c0000000001767ac] .do_last+0x66c/0x814 [c00000007e69faa0] [c000000000177820] .path_openat+0x110/0x450 [c00000007e69fbc0] [c000000000177ca4] .do_filp_open+0x68/0xb0 [c00000007e69fd00] [c00000000016468c] .do_sys_open+0x160/0x228 [c00000007e69fdc0] [c0000000001b6aa8] .compat_sys_open+0x24/0x38 [c00000007e69fe30] [c000000000008564] syscall_exit+0x0/0x40 Instruction dump: 419e0010 7f84e378 38a00001 4bfff8e9 38000000 f81f0078 7f63db78 484a1865 60000000 7fa3eb78 4817be41 60000000 <e93d0240> e8690058 4bf14521 60000000 ---[ end trace 31fd0ba7d8756004 ]--- fsckdied with signal 11 -- The system has no disks, only an RAM fs. If I revert just this patch, the oops goes away: 69e02c59a7d962dced8047401b81a8d897e1702e block: Don't check events while open is in progress So it looks like this null check is still needed. - if (disk) - module_put(disk->fops->owner); + module_put(disk->fops->owner); Mikey -- 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
