https://bugzilla.kernel.org/show_bug.cgi?id=16312 --- Comment #9 from Larry Finger <Larry.Finger@xxxxxxxxxxxx> 2010-07-26 17:53:04 --- These patches break my system (the one reported in Bug #16122). It obviously is different. After installing the patches. I get a NULL pointer dereference for address 0x30 as __mark_inode_dirty + 0xf0/0x1a0 (x86_64 system). The code offset 0xf30. I have a 2.6.35-rc6 kernel. The assembler code around that address is /home/finger/linux-temp/fs/fs-writeback.c:960 f28: 4d 8b ac 24 b0 01 00 mov 0x1b0(%r12),%r13 f2f: 00 /home/finger/linux-temp/fs/fs-writeback.c:962 f30: 41 f6 45 30 02 testb $0x2,0x30(%r13) f35: 75 31 jne f68 <__mark_inode_dirty+0x128> f37: 41 f6 45 28 10 testb $0x10,0x28(%r13) f3c: 75 2a jne f68 <__mark_inode_dirty+0x128> The code at line 960 is: struct backing_dev_info *bdi = wb->bdi; if (bdi_cap_writeback_dirty(bdi) && !test_bit(BDI_registered, &bdi->state)) { WARN_ON(1); printk(KERN_ERR "bdi-%s not registered\n", bdi->name); } and wb->bdi is NULL. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
