https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220437
Bug ID: 220437
Summary: system crashes and reboots while unpacking tarball to
sdcard
Product: Base System
Version: CURRENT
Hardware: i386
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Hi there;
I am running FreeBSD-11.1-RC1 on an old Pentium3 machine with 512MB RAM.
The device also has a USB-2.0 PCI expansion card where I attached a USB-3.0
sdcard reader by Transcend.
Now what I am doing is mount slice 3 (MBR) on that card as /mnt, and unpack a
previously created tarball containing a custom freebsd build for arm.
Tarball is about 900MB in size, and then gzipped with -9 to 300MB.
I was using an SSH session to perform the unpacking, and after a while the
console showed errors:
root@pentium3:/mnt # tar -xpf
/usr/local/samba/clearfog/freebsd-clearfog-20170702.tar.gz
usr/: Can't create 'usr'
usr/lib/: Can't create 'usr/lib'
usr/libexec/: Can't create 'usr/libexec'
usr/libdata/: Can't create 'usr/libdata'
......
Once I noticed the situation, the machine was already halfway through
rebooting, and the SSH client eventually realized that the session was dead.
I have seen this behaviour before with FreeBSD as a guest to VirtualBox, with
that *same* cardreader and card attached via usb-passthrough! (But I didn't
collect any data back then).
So a crashdump was saved in /var/crash:
-rw------- 1 root wheel 191M Jul 3 01:05 vmcore.0
https://vps.jm0.eu/box/sdcardcrash1.core
https://vps.jm0.eu/box/sdcardcrash1.core.xz
Let me know if you need further details.
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