Hi, Every time I compile anything on my box running 2.6.18, I get these messages in dmesg every 5 seconds: Kernel unaligned access at TPC[4ec2f0] sys_msgrcv+0x2dc/0x32c Kernel unaligned access at TPC[4e9f6c] compat_sys_msgrcv+0xbc/0x124 Kernel unaligned access at TPC[4ec2f0] sys_msgrcv+0x2dc/0x32c Kernel unaligned access at TPC[4e9f6c] compat_sys_msgrcv+0xbc/0x124 Kernel unaligned access at TPC[4ec2f0] sys_msgrcv+0x2dc/0x32c Decoding the addresses indicates that the unaligned accesses are generated by get_user call in compat_sys_msgrcv at ipc/compat.c:357 and put_user in sys_msgrcv at ipc/msg.c:836. As far as I can tell, the problem stems from the fact that allocating memory with p = compat_alloc_user_space(second + sizeof(struct msgbuf)); at ipc/compat.c:352 does not guarantee alignment of p, so when we later try to ldxa from the address &p->mtype (in get_user) or stxa to &msgp->mtype (in put_user), we catch an exception. As I'm not sure what would be the correct fix here, I'd appreciate any advice on how to deal with that. Best regards, -- Jurij Smakov jurij@xxxxxxxxx Key: http://www.wooyd.org/pgpkey/ KeyID: C99E03CC - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
