Messages in this thread Patch in this message | | | Date | Wed, 12 Jul 2006 17:19:30 +0900 | From | Sakurai Hiroomi <> | Subject | Re: Help: strange messages from kernel on IA64 platform |
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Hi,
I saw same message.
When GAM(Global Array Manager) is started, The following message output. kernel: kernel unaligned access to 0xe0000001fe1080d4, ip=0xa000000200053371
The uioc structure used by ioctl is defined by packed, the allignment of each member are disturbed. In a 64 bit structure, the allignment of member doesn't fit 64 bit boundary. this causes this messages. In a 32 bit structure, we don't see the message because the allinment of member fit 32 bit boundary even if packed is specified.
patch I Add 32 bit dummy member to fit 64 bit boundary. I tested. We confirmed this patch fix the problem by IA64 server.
****************************************************************************** --- linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h.orig 2006-04-03 17:13:03.000000000 +0900 +++ linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h 2006-04-03 17:14:09.000000000 +0900 @@ -132,6 +132,10 @@ /* Driver Data: */ void __user * user_data; uint32_t user_data_len; + + /* 64bit alignment */ + uint32_t pad_0xBC; + mraid_passthru_t __user *user_pthru; mraid_passthru_t *pthru32; ****************************************************************************** I'm not participated in the linux-scsi mailing list. Please reply to the following addresses.
E-Mail : sakurai_hiro@soft.fujitsu.com
Best regards, Hiroomi Sakurai
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