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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1702253
Title:
hio.ko driver from linux-
image-4.10.0-26-generic_4.10.0-26.30_amd64.deb will corrupt data on
SSD disk
Status in linux package in Ubuntu:
Incomplete
Bug description:
The user upgrade Ubuntu server to linux-
image-4.10.0-26-generic_4.10.0-26.30_amd64.deb and it use a SSD of
ES3000 V2 SSD which the correspond module driver of hio.ko is include
in this kernel. The data write to disk seems was incorrect.
To format this sdd disk with xfs get error of "meta data corruption"
and to use dd write data to this ssd disk and read out again, the
sha256 chuksum is also mismatched.
It was tested for 4.8.0-34-generic, 4.10.0-26-generic and 4.12， this
problem was not found on 4.8.0-34-generic, but both 4.10.0-26-generic
and 4.12 have same issues.
This hio source can be download from
http://support.huawei.com/enterprise/zh/server/es3000-v2-pid-21242728/software/22305278?idAbsPath=fixnode01%7C7919749%7C9856522%7C9856629%7C21462722%7C21242728.
It is also include in Ubuntu kernel tree of linux-source-4.10.0.
Huawei reports that they get similar problem when upgrading from linux4.4 to
linux4.8 and they fix it at the hio driver in 2.1.0.28 version as:
The modification for 4.8 is as below:
if (!test_bit(SSD_ONLINE, &dev->state)) {
ssd_bio_endio(bio, -ENODEV);
goto out;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
blk_queue_split(q, &bio, q->bio_split);
#endif
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