Date: Sat, 20 Jan 2018 10:18:57 +0100 From: Hans Petter Selasky <hps@selasky.org> To: Greg V <greg@unrelenting.technology>, freebsd-net@freebsd.org, freebsd-current@freebsd.org Subject: Re: mlx4 weird error "Failed to map EQ context memory" after update Message-ID: <d47071c3-3382-0d20-24d0-28cd4613c7ab@selasky.org> In-Reply-To: <cc1e0689-bd11-fb21-3b8f-8464a11461a1@unrelenting.technology> References: <48f48a42-9115-8d97-5093-0e7173b36533@unrelenting.technology> <cd223168-28a2-de44-0eef-f7fbd2e3b5cc@selasky.org> <cc1e0689-bd11-fb21-3b8f-8464a11461a1@unrelenting.technology>
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On 01/20/18 00:17, Greg V via freebsd-net wrote: > > On 01/19/2018 12:54, Hans Petter Selasky wrote: >> On 01/18/18 14:11, Greg V wrote: >>> Hi. I've upgraded CURRENT from December 19 >>> (https://github.com/freebsd/freebsd/commit/fd53ccf393f4f8ac1948e97eca108) >>> to today >>> (https://github.com/freebsd/freebsd/commit/391a83c86bb91ae3840cf37b7de478f42cc97e2a) >>> and my Mellanox ConnectX-2 network card stopped working: >>> >>> mlx4_core0: <mlx4_core> mem >>> 0xfe100000-0xfe1fffff,0xf0800000-0xf0ffffff irq 32 at device 0.0 on pci7 >>> mlx4_core: Mellanox ConnectX core driver v3.4.1 (October 2017) >>> mlx4_core: Initializing mlx4_core >>> mlx4_core0: command 0xffa failed: fw status = 0x1 >>> mlx4_core0: Failed to map EQ context memory, aborting >>> device_attach: mlx4_core0 attach returned 12 >>> >>> >>> Loading the OLD mlx4.ko and mlx4en.ko on the NEW kernel actually does >>> work fine! >>> >>> Reverting all mlx4 changes between then and now (no big changes, >>> mostly just the 1 << 31 thing from D13858) and rebuilding the mlx4 >>> module with CC=clang50 does not help. >>> >>> What happened?! >> >> Hi, >> >> Can you do: >> >> objdump -Dx /boot/kernel/mlx4.ko > mlx4.ko.txt >> objdump -Dx /boot/kernel/mlx4en.ko > mlx4en.ko.txt >> >> And diff the text result between working and non-working ko's. > That results in 180883 lines (9.2 megabytes) of diff for mlx4.ko. The > CC=clang50 one is only a bit better at 7.6 MB :( Can you open this diff using "meld". And look for instructions which have changed, not only their location. --HPS
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