* OOM/panic observed durintg creating RAID4 with DIF/DIX enabled disk
[not found] <2062708428.2492143.1471511559011.JavaMail.zimbra@redhat.com>
@ 2016-08-18 9:44 ` Yi Zhang
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From: Yi Zhang @ 2016-08-18 9:44 UTC (permalink / raw)
To: linux-raid; +Cc: shli, jmoyer, Jes Sorensen, Xiao Ni
hello
I observed OOM/panic during create RAID4 with DIF/DIX enabled disk, here I used scsi-debug to created the DIF/DIX disk.
Full log:
http://pastebin.com/uP3rJcHX
Environment:
4.8.0-rc2
32Gb phycial memory
Reproduced at Iteration:19
Reproduce steps:
#!/bin/bash
modprobe scsi_debug dev_size_mb=16384 num_parts=4 dif=1 dix=1
sleep 5
num=0
while [ $num -lt 100 ]; do
echo "********************Iteration:$num****************"
mdadm --create --run /dev/md0 --level 4 --metadata 1.2 --raid-devices 4 /dev/sdc[1-4] --bitmap=internal --bitmap-chunk=64M --chunk 512
mdadm --wait /dev/md0
cat /proc/mdstat
mdadm -Ss
mdadm --zero-superblock /dev/sdc[1-4]
sleep 1
((num++))
done
Best Regards,
Yi Zhang
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2016-08-18 9:44 ` OOM/panic observed durintg creating RAID4 with DIF/DIX enabled disk Yi Zhang
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