Date: Fri, 4 Oct 2002 11:21:18 +0300 (EEST) From: Dennis Lindroos <lindroos@nls.fi> To: FreeBSD-gnats-submit@FreeBSD.org Cc: dns@nls.fi Subject: alpha/43653: rl(8) driver causes unaligned access trap on alpha Message-ID: <200210040821.g948LIXc000668@nls.fi>
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>Number: 43653 >Category: alpha >Synopsis: rl(8) driver causes unaligned access trap on alpha >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-alpha >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Oct 04 01:30:01 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Dennis Lindroos >Release: FreeBSD 4.6.2-RELEASE alpha >Organization: National Land Survey of Finland >Environment: System: FreeBSD Alpha-flight.nls.fi 4.6.2-RELEASE FreeBSD 4.6.2-RELEASE #5: Fri Oct 4 08:29:34 EEST 2002 root@Alpha-flight.nls.fi:/usr/src/sys/compile/IPANA alpha Hardware model: AlphaServer 1000A 5/400 Ethernet card: Accton MPX 5038B PCI >Description: In sys/pci/if_rl.c function rl_stop(), the expression: CSR_WRITE_4(sc, RL_TXADDR0 + i, 0x0000000); causes a fatal trap on alpha systems, when the rl(4) interface is up and running. >How-To-Repeat: Enable the interface and set it to 100BaseTX full-duplex, then try something like spray(8) with options -c1024 -l4096 a few times. Probably many other network-intensive application will trigger the bug. >Fix: Replacing the expression mentioned in the description above with: CSR_WRITE_4(sc, RL_TXADDR0 + (i * sizeof(u_int32_t)), 0x0000000); should work. >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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