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1Release Date : Fri May 19 09:31:45 EST 2006 - Seokmann Ju <sju@lsil.com>
2Current Version : 2.20.4.9 (scsi module), 2.20.2.6 (cmm module)
3Older Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)
4
51. Fixed a bug in megaraid_init_mbox().
6 Customer reported "garbage in file on x86_64 platform".
7 Root Cause: the driver registered controllers as 64-bit DMA capable
8 for those which are not support it.
9 Fix: Made change in the function inserting identification machanism
10 identifying 64-bit DMA capable controllers.
11
12 > -----Original Message-----
13 > From: Vasily Averin [mailto:vvs@sw.ru]
14 > Sent: Thursday, May 04, 2006 2:49 PM
15 > To: linux-scsi@vger.kernel.org; Kolli, Neela; Mukker, Atul;
16 > Ju, Seokmann; Bagalkote, Sreenivas;
17 > James.Bottomley@SteelEye.com; devel@openvz.org
18 > Subject: megaraid_mbox: garbage in file
19 >
20 > Hello all,
21 >
22 > I've investigated customers claim on the unstable work of
23 > their node and found a
24 > strange effect: reading from some files leads to the
25 > "attempt to access beyond end of device" messages.
26 >
27 > I've checked filesystem, memory on the node, motherboard BIOS
28 > version, but it
29 > does not help and issue still has been reproduced by simple
30 > file reading.
31 >
32 > Reproducer is simple:
33 >
34 > echo 0xffffffff >/proc/sys/dev/scsi/logging_level ;
35 > cat /vz/private/101/root/etc/ld.so.cache >/tmp/ttt ;
36 > echo 0 >/proc/sys/dev/scsi/logging
37 >
38 > It leads to the following messages in dmesg
39 >
40 > sd_init_command: disk=sda, block=871769260, count=26
41 > sda : block=871769260
42 > sda : reading 26/26 512 byte blocks.
43 > scsi_add_timer: scmd: f79ed980, time: 7500, (c02b1420)
44 > sd 0:1:0:0: send 0xf79ed980 sd 0:1:0:0:
45 > command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00
46 > buffer = 0xf7cfb540, bufflen = 13312, done = 0xc0366b40,
47 > queuecommand 0xc0344010
48 > leaving scsi_dispatch_cmnd()
49 > scsi_delete_timer: scmd: f79ed980, rtn: 1
50 > sd 0:1:0:0: done 0xf79ed980 SUCCESS 0 sd 0:1:0:0:
51 > command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00
52 > scsi host busy 1 failed 0
53 > sd 0:1:0:0: Notifying upper driver of completion (result 0)
54 > sd_rw_intr: sda: res=0x0
55 > 26 sectors total, 13312 bytes done.
56 > use_sg is 4
57 > attempt to access beyond end of device
58 > sda6: rw=0, want=1044134458, limit=951401367
59 > Buffer I/O error on device sda6, logical block 522067228
60 > attempt to access beyond end of device
61
1Release Date : Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju <sju@lsil.com> 62Release Date : Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju <sju@lsil.com>
2Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) 63Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)
3Older Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module) 64Older Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module)