This patch has been applied to hirsute.
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
** Changed in: linux (Ubuntu Hirsute)
Status: In Progress => Fix Released
** Changed in: ubuntu-kernel-tests
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1908501
Title:
Sub-tests in kselftest/net/udpgro.sh is failing with
"./udpgso_bench_rx: poll: 0x0 expected 0x1"
Status in ubuntu-kernel-tests:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-5.6 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Fix Committed
Status in linux-oem-5.6 source package in Focal:
Fix Released
Status in linux source package in Groovy:
Won't Fix
Status in linux source package in Hirsute:
Fix Released
Bug description:
[Impact]
Sub test cases in kselftest/net/udpgro.sh is failing with:
./udpgso_bench_rx: poll: 0x0 expected 0x1
Complete test output of a sub test case:
multiple GRO socks
BTF debug data section '.BTF' rejected: Invalid argument (22)!
- Length: 568
Verifier analysis:
magic: 0xeb9f
version: 1
flags: 0x0
hdr_len: 24
type_off: 0
type_len: 256
str_off: 256
str_len: 288
btf_total_size: 568
[1] PTR (anon) type_id=2
[2] STRUCT xdp_md size=20 vlen=5
data type_id=3 bits_offset=0
data_end type_id=3 bits_offset=32
data_meta type_id=3 bits_offset=64
ingress_ifindex type_id=3 bits_offset=96
rx_queue_index type_id=3 bits_offset=128
[3] TYPEDEF __u32 type_id=4
[4] INT unsigned int size=4 bits_offset=0 nr_bits=32 encoding=(none)
[5] FUNC_PROTO (anon) return=6 args=(1 ctx)
[6] INT int size=4 bits_offset=0 nr_bits=32 encoding=SIGNED
[7] FUNC xdp_dummy_prog type_id=5
[8] INT char size=1 bits_offset=0 nr_bits=8 encoding=SIGNED
[9] ARRAY (anon) type_id=8 index_type_id=10 nr_elems=4
[10] INT __ARRAY_SIZE_TYPE__ size=4 bits_offset=0 nr_bits=32 encoding=(none)
[11] VAR _license type_id=9 linkage=1
[12] DATASEC license size=0 vlen=1 size == 0
./udpgso_bench_rx: poll: 0x0 expected 0x1
./udpgso_bench_rx: poll: 0x0 expected 0x1
failed
It's a bit hard to spot this as the udpgro.sh will return 0 even with
these failures present (bug 1908499)
[Fix]
* 38bf8cd821be29 ("selftests: fix poll error in udpgro.sh")
We have this test case since Focal
This patch can be cherry-picked into all the affected releases.
[Test Case]
Run the kselftest/net/udpgro.sh as root.
It will no longer complaining about this error message anymore:
./udpgso_bench_rx: poll: 0x0 expected 0x1
multiple GRO socks
BTF debug data section '.BTF' rejected: Invalid argument (22)!
- Length: 568
Verifier analysis:
magic: 0xeb9f
version: 1
flags: 0x0
hdr_len: 24
type_off: 0
type_len: 256
str_off: 256
str_len: 288
btf_total_size: 568
[1] PTR (anon) type_id=2
[2] STRUCT xdp_md size=20 vlen=5
data type_id=3 bits_offset=0
data_end type_id=3 bits_offset=32
data_meta type_id=3 bits_offset=64
ingress_ifindex type_id=3 bits_offset=96
rx_queue_index type_id=3 bits_offset=128
[3] TYPEDEF __u32 type_id=4
[4] INT unsigned int size=4 bits_offset=0 nr_bits=32 encoding=(none)
[5] FUNC_PROTO (anon) return=6 args=(1 ctx)
[6] INT int size=4 bits_offset=0 nr_bits=32 encoding=SIGNED
[7] FUNC xdp_dummy_prog type_id=5
[8] INT char size=1 bits_offset=0 nr_bits=8 encoding=SIGNED
[9] ARRAY (anon) type_id=8 index_type_id=10 nr_elems=4
[10] INT __ARRAY_SIZE_TYPE__ size=4 bits_offset=0 nr_bits=32 encoding=(none)
[11] VAR _license type_id=9 linkage=1
[12] DATASEC license size=0 vlen=1 size == 0
ok
[Where problems could occur]
The fix is limited to testing tools, no actual affect to the kernel. The
possible issue is that this patch is incorrect and it will make us ignore the
real issue in the kernel.
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https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1908501/+subscriptions
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