Date: Thu, 24 Jan 2008 16:38:10 GMT From: "Y.Okabe" <be_works_us@yahoo.com> To: freebsd-gnats-submit@FreeBSD.org Subject: usb/119945: rum device in hostap mode, cause kernel core dump. Message-ID: <200801241638.m0OGcAvt021253@www.freebsd.org> Resent-Message-ID: <200801241640.m0OGe2n7058878@freefall.freebsd.org>
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>Number: 119945 >Category: usb >Synopsis: rum device in hostap mode, cause kernel core dump. >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-usb >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Jan 24 16:40:02 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Y.Okabe >Release: 7.0-PRERELEASE >Organization: >Environment: FreeBSD 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE CPU: VIA C7 Esther+RNG+AES+AES-CTR+SHA1+SHA256+RSA (1500.00-MHz 686-class CPU) Origin = "CentaurHauls" Id = 0x6d0 Stepping = 0 Features=0xa7c9bbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,CMOV,PAT,CLFLUSH,ACPI,MMX,FXSR,SSE,SSE2,TM,PBE> Features2=0x4181<SSE3,EST,TM2,xTPR> dmesg follow: uhub4: <VIA EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb4 uhub4: 8 ports with 8 removable, self powered rum0: <buffalo WLI-U2-SG54HP, class 0/0, rev 2.00/0.01, addr 2> on uhub4 rum0: MAC/BBP RT2573 (rev 0x2573a), RF RT2528 rum0: Ethernet address: 00:16:xx:xx:xx:xx rum0: if_start running deferred for Giant >Description: I made rum device into hostap mode. When receive some packet by rum device, kernel was panic and core dumped at module uhci.ko. >How-To-Repeat: 1. install GENERIC kernel for RENENG_7, 2. configure hostapd using rum0. 3. setup rum0 and wired lan ingerface bridge i.e. run ifconfig bridge0 create run ifconfig bridge0 addm rum0 addm eth0 run ifconfig bridge0 inet 192.168.1.9/24 4. run hostapd. 5. accsess wlan client this hostap accces point (by WPA-PSK, WPA-AES, WPA2-AES, etc...) 6. some packet send, kernel panic. >Fix: rum_free_tx_list function on if_rum.c , at the OpenBSD current source is --------------- openbsd if_rum.c start -------------------------------- void rum_free_tx_list(struct rum_softc *sc) { int i; for (i = 0; i < RUM_TX_LIST_COUNT; i++) { struct rum_tx_data *data = &sc->tx_data[i]; if (data->xfer != NULL) { usbd_free_xfer(data->xfer); data->xfer = NULL; } /* * The node has already been freed at that point so don't call * ieee80211_release_node() here. */ data->ni = NULL; } } --------------- openbsd if_rum.c end -------------------------------- therefor, freebsd's rum_free_tx_list function at if_rum.c /usr/src/sys/dev/usb/if_rum.c at line 650 static void rum_free_tx_list(struct rum_softc *sc) { struct rum_tx_data *data; int i; for (i = 0; i < RUM_TX_LIST_COUNT; i++) { data = &sc->tx_data[i]; if (data->xfer != NULL) { usbd_free_xfer(data->xfer); data->xfer = NULL; } if (data->ni != NULL) { - ieee80211_free_node(data->ni); + /*ieee80211_free_node(data->ni);*/ data->ni = NULL; } } } -------------------------------------------------------------------- I don't know this patch's work reason. but, hostapd can work at patched kernel. >Release-Note: >Audit-Trail: >Unformatted:
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