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Bug
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Resolution: Duplicate
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Critical
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None
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None
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None
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Three server nodes and one client. Kernel version: Ubuntu-5.4.0-90.101
# MGS
mkfs.lustre --fsname=lustre --mgs /dev/vda
mount -t lustre /dev/vda /root/lustre-server
# MDS
mkfs.lustre --fsname=lustre --index=0 --mgsnode=$start_ip@tcp0 --mdt /dev/vda
mount -t lustre /dev/vda /root/lustre-server
# OSS
mkfs.lustre --ost --fsname=lustre --index=1 --reformat --mgsnode=$start_ip@tcp0 /dev/vda
mount -t lustre /dev/vda /root/lustre-server
# Client
mount -t lustre $start_ip@tcp0:/lustre /root/lustre-clientThree server nodes and one client. Kernel version: Ubuntu-5.4.0-90.101 # MGS mkfs.lustre --fsname=lustre --mgs /dev/vda mount -t lustre /dev/vda /root/lustre-server # MDS mkfs.lustre --fsname=lustre --index=0 --mgsnode=$ start_ip@tcp0 --mdt /dev/vda mount -t lustre /dev/vda /root/lustre-server # OSS mkfs.lustre --ost --fsname=lustre --index=1 --reformat --mgsnode=$ start_ip@tcp0 /dev/vda mount -t lustre /dev/vda /root/lustre-server # Client mount -t lustre $ start_ip@tcp0 :/lustre /root/lustre-client
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3
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9223372036854775807
A null-pointer dereference is detected in osc_request.c:3358 (function osc_iocontrol) and then crashes the kernel.
- Strace
open(".", O_RDONLY) = 3
ioctl(3, _IOC(_IOC_WRITE, 0x66, 0x85, 0x8), 0) = ?
+++ killed by SIGSEGV +++
Segmentation fault