I'm not 100% sure if I loaded the new module correctly, but I believe
that I did. Here are the steps I took to compile the module and load it,
which resulted in the output of #21:
git clone
git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy
linux-jammy
cd linux-jammy/
uname
I'm gonna chime in too. I have applied both patches from #18 and #20 and
recompiled the module, however I still get the UBSAN: array-index-out-
of-bounds messsage. NIC seems to work though. I am not a programmer, so
unfortunately I can't come up with a solution, but I am willing to test.
Kernel:
Sorry. Like this?
for (tc = 0U; tc < self->aq_nic_cfg.tcs; tc++) {
for (i = 0U; self->aq_vecs > i; ++i) {
aq_vec = self->aq_vec[i];
if (!aq_vec)
break;
data += count;
count = aq_vec_get_sw_stats(aq_vec, tc, data);
}
}
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I have implemented your suggestion, so far no issues. I'm going to kick
off my backup now and do some more testing later.
** Patch added: "aq_nic.c.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958770/+attachment/5589366/+files/aq_nic.c.patch
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How would I go about doing so, while giving credit to bsdz and you?
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https://bugs.launchpad.net/bugs/1958770
Title:
Aquantia GbE LAN driver causes UBSAN error during kernel boot
To
OK, so far everything seems to be working great. Performance is good, no
UBSAN messages, no other abnormalities. I think we are good now.
** Patch added: "aq_nic.c.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958770/+attachment/5589555/+files/aq_nic.c.patch
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Thank you @bsdz, compiles and works flawlessly since yesterday. UBSAN is
happy, performance is as expected.
@kaihengfeng, is this patch suitable for inclusion upstream?
** Patch added: "aq_nic.c.patch"
I tried changing the function, now the module doesn't compile.
EDIT: Sorry, forgot to close the curly bracket...
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Title:
Aquantia GbE LAN
I have successfully modified two of the mentioned three functions and
tested the module, so far UBSAN does not complain anymore :)
Unfdortunately I can't rewrite the third function, since it does not
match the pattern (and I have no idea what I'm doing)
for (tc = 0U; tc < self->aq_nic_cfg.tcs;
Sorry for the delay, life happened...
After mucking about with this for the past few days and not being able
to get the module to compile on 5.15 for the life of me (always same
error "implicit declaration of function ‘platform_get_ethdev_address’
[-Werror=implicit-function-declaration]"), I have
** Attachment added: "dmesg.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958770/+attachment/5588060/+files/dmesg.log
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Title:
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