From: Jakub Kicinski <kuba@kernel.org>
To: Dragos Tatulea <dtatulea@nvidia.com>
Cc: Nimrod Oren <noren@nvidia.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [TEST] CX7 timeouts on reconfig w/ page pool failure injection
Date: Tue, 4 Aug 2026 12:44:56 -0700 [thread overview]
Message-ID: <20260804124456.1acd9f33@kernel.org> (raw)
In-Reply-To: <37c7d934-b356-4920-a332-9416b1f7fce8@nvidia.com>
On Tue, 4 Aug 2026 19:16:19 +0200 Dragos Tatulea wrote:
> Randomly clicking around the flakes page, I found another instance of
> pp_alloc_fail.py running and getting crashes in mlx5 during page
> deallocation:
> https://netdev.bots.linux.dev/logs/hwksft/CX7-dbg/results/762402/sol-machine-2
>
> Is this also something new?
Ah, that was going to be my next ask. (there were some fake "crashes"
reported in NIPA because the system was retrying and running out of
time, that's hopefully fixed as of this morning so the signal will
be cleaner)
The crash has been hitting since the beginning of July (if it gets
line wrapped into oblivion the tl;dr is that first hit was
net-next-hw-2026-07-03--00-00):
branch | test | crashes
-------------------------------+------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-------
net-next-hw-2026-08-04--16-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:mlx5e_free_rx_mpwqe:__napi_poll"]
net-next-hw-2026-08-03--08-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-08-02--16-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-08-02--08-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-31--00-00 | pp-alloc-fail-py | [""]
net-next-hw-2026-07-28--08-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-28--00-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-26--16-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-25--16-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-25--08-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-25--00-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_dealloc_rx_mpwqe:mlx5e_free_rx_descs:mlx5e_close_rq:mlx5e_close_queues"]
net-next-hw-2026-07-23--00-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-19--16-03 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-19--08-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_dealloc_rx_mpwqe:mlx5e_free_rx_descs:mlx5e_close_rq:mlx5e_close_queues", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-18--00-00 | pp-alloc-fail-py | [""]
net-next-hw-2026-07-17--16-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-17--00-00 | irq-py | ["mlx5e_free_rx_mpwqe:mlx5e_dealloc_rx_mpwqe:mlx5e_free_rx_descs:mlx5e_close_rq:mlx5e_close_queues"]
net-next-hw-2026-07-15--08-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes"]
net-next-hw-2026-07-13--16-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-13--08-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-13--00-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-12--16-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-11--00-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-10--08-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-10--00-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-09--08-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:mlx5e_free_rx_mpwqe"]
net-next-hw-2026-07-09--00-00 | pp-alloc-fail-py | ["handle_softirqs:run_ksoftirqd:mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-08--08-00 | pp-alloc-fail-py | [""]
net-next-hw-2026-07-07--16-00 | ethtool-rmon-sh | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-07--08-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-07--00-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-06--16-00 | pp-alloc-fail-py | ["mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action", "ret_from_fork_asm"]
net-next-hw-2026-07-06--00-00 | irq-py | ["mlx5e_free_rx_mpwqe:mlx5e_dealloc_rx_mpwqe:mlx5e_free_rx_descs:mlx5e_close_rq:mlx5e_close_queues"]
net-next-hw-2026-07-05--16-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
net-next-hw-2026-07-03--00-00 | pp-alloc-fail-py | ["", "mlx5e_free_rx_mpwqe:mlx5e_post_rx_mpwqes:mlx5e_napi_poll:__napi_poll:net_rx_action"]
(for my own record)
SELECT
r.branch,
x.test,
x.crashes
FROM results AS r
CROSS JOIN LATERAL jsonb_to_recordset(
r.json_full::jsonb -> 'results'
) AS x(test text, crashes jsonb)
WHERE r.remote = 'netdev-CX7-dbg'
AND x.crashes IS NOT NULL
AND x.crashes <> '["kernel crash during test"]'::jsonb
ORDER BY r.branch_date DESC;
prev parent reply other threads:[~2026-08-04 19:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-04 16:45 [TEST] CX7 timeouts on reconfig w/ page pool failure injection Jakub Kicinski
2026-08-04 17:16 ` Dragos Tatulea
2026-08-04 19:44 ` Jakub Kicinski [this message]
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