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authorJulia Hansbrough <flowerhack@google.com>2018-02-28 16:37:00 -0800
committerDmitry Vyukov <dvyukov@google.com>2018-03-01 10:11:02 +0100
commitc40895075b442de21dcbf30262c55943f52f81b2 (patch)
tree3a8253bb4de7d8cda4af182f7e647315e6202b53 /docs/linux
parent05b5a32cfd918a0049f5657a6474ec3b08694093 (diff)
[docs] Add Linux network troubleshooting guidance.
It took me a bit to figure out this kernel configuration quirk, so thought it may be helpful to add to the troubleshooting section!
Diffstat (limited to 'docs/linux')
-rw-r--r--docs/linux/troubleshooting.md9
1 files changed, 9 insertions, 0 deletions
diff --git a/docs/linux/troubleshooting.md b/docs/linux/troubleshooting.md
index d805adc3b..7f172304f 100644
--- a/docs/linux/troubleshooting.md
+++ b/docs/linux/troubleshooting.md
@@ -19,6 +19,15 @@ Here are some things to check if there are problems running syzkaller.
ssh -i $SSHKEY -p 23505 root@localhost
```
+ - If you *are* having SSH difficulties, make sure your kernel configuration
+ has networking enabled. Sometimes defconfig errs minimalistic and omits the
+ following necessary options:
+ ```shell
+ CONFIG_VIRTIO_NET=y
+ CONFIG_E1000=y
+ CONFIG_E1000E=y
+ ```
+
- Check that the `CONFIG_KCOV` option is available inside the VM:
- `ls /sys/kernel/debug # Check debugfs mounted`
- `ls /sys/kernel/debug/kcov # Check kcov enabled`