Re: [PATCH 4.19 00/53] 4.19.240-rc1 review [net: ethernet: stmmac: fix altr_tse_pcs function when using a]

From: Dinh Nguyen
Date: Fri Apr 29 2022 - 11:53:43 EST

On 4/29/22 04:22, Greg Kroah-Hartman wrote:
On Fri, Apr 29, 2022 at 09:43:41AM +0200, Pavel Machek wrote:

This is the start of the stable review cycle for the 4.19.240 release.
There are 53 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.
I still see problems on socfpga:

[ 1.227759] mmcblk0: p1 p2 p3
[ 1.269825] Micrel KSZ9031 Gigabit PHY stmmac-0:01: attached PHY driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=stmmac-0:01, irq=POLL)
[ 1.284600] socfpga-dwmac ff702000.ethernet eth0: No Safety Features support found
[ 1.292374] socfpga-dwmac ff702000.ethernet eth0: registered PTP clock
[ 1.299247] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 5.444552] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 5.478679] Workqueue: events_power_efficient phy_state_machine
[ 5.484579] PC is at socfpga_dwmac_fix_mac_speed+0x3c/0xbc
[ 5.490044] LR is at arm_heavy_mb+0x2c/0x48

Can you run git bisect?

Not a bisect, but we guessed e2423aa174e6 was responsible, and tested
it boots with that patch reverted.

Best regards,

commit e2423aa174e6c3e9805e96db778245ba73cdd88c

net: ethernet: stmmac: fix altr_tse_pcs function when using a

[ Upstream commit a6aaa00324240967272b451bfa772547bd576ee6 ]

Thanks, now reverted from 4.19.y, 4.14.y, and 4.9.y

I have fixed this with this patch that is in linux-next:

5fd1fe4807f9 ("net: ethernet: stmmac: fix write to sgmii_adapter_base")