Date: Thu, 29 May 2025 10:48:24 +0200 From: Milan Obuch <freebsd-riscv@dino.sk> To: riscv@freebsd.org Subject: LOR on Star64 + network problem (eqos TX not working) Message-ID: <20250529104824.68854839.14667060.91379410@dino.sk>
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This occured on cable attach to network port of Star64 board: lock order reversal: (sleepable after non-sleepable) 1st 0xffffffc086509070 eqos lock (network driver, sleep mutex) @ /usr/src/sys/kern/kern_mutex.c:213 2nd 0xffffffc0008f90c0 Clock topology lock (Clock topology lock, sx) @ /usr/src/sys/dev/clk/clk.c:1208 lock order network driver -> Clock topology lock attempted at: #0 0xffffffc00038b6be at witness_checkorder+0xa02 #1 0xffffffc00032d776 at _sx_xlock+0x58 #2 0xffffffc0000ecc0a at clk_set_freq+0x44 #3 0xffffffc000613884 at if_eqos_starfive_set_speed+0x78 #4 0xffffffc000611eaa at eqos_miibus_statchg+0x13e #5 0xffffffc000114aae at miibus_statchg+0x50 #6 0xffffffc0001157c0 at mii_phy_update+0x60 #7 0xffffffc0001133d8 at mcommphy_service+0x226 #8 0xffffffc000114426 at mii_tick+0x32 #9 0xffffffc000613474 at eqos_tick+0x68 #10 0xffffffc00033ee20 at $x+0 #11 0xffffffc000340354 at softclock_thread+0xaa #12 0xffffffc0002de9bc at fork_exit+0x68 #13 0xffffffc0005fd49a at fork_trampoline+0xa Additionally, network does not fully work - I can tcpdump on eqos0, I see some packet being received, arp protocol works at least to some degree - I see arp table entry on Star64, but not on the other side. It looks like receive path is OK, but sending does not work. This test was done first with cable put to 100 Mbps switch port, no idea whether it's relevant. I tried with 1 Gbps as well, the result is the same. So TX path is not working for me. Link negotiating seems to be OK, ifconfig output shows 100 or 1000 reflecting the port speed it is connected to, but no packet is seen arriwing to the other side of the cable. Regards, Milan
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