From nobody Wed Oct 02 12:59:09 2024 X-Original-To: freebsd-hardware@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XJZdG6PnSz5YVGd for ; Wed, 02 Oct 2024 12:59:14 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost1.sentex.ca (smarthost1.sentex.ca [IPv6:2607:f3e0:0:1::12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smarthost1.sentex.ca", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XJZdF6h6sz4crj for ; Wed, 2 Oct 2024 12:59:13 +0000 (UTC) (envelope-from mike@sentex.net) Authentication-Results: mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of mike@sentex.net designates 2607:f3e0:0:1::12 as permitted sender) smtp.mailfrom=mike@sentex.net; dmarc=none Received: from pyroxene2a.sentex.ca (pyroxene19.sentex.ca [199.212.134.19]) by smarthost1.sentex.ca (8.18.1/8.18.1) with ESMTPS id 492CxATl019451 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=FAIL); Wed, 2 Oct 2024 08:59:10 -0400 (EDT) (envelope-from mike@sentex.net) Received: from [IPV6:2607:f3e0:0:4:eca3:ea83:d867:1a0] ([IPv6:2607:f3e0:0:4:eca3:ea83:d867:1a0]) by pyroxene2a.sentex.ca (8.18.1/8.15.2) with ESMTPS id 492Cx8NT030922 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NO); Wed, 2 Oct 2024 08:59:09 -0400 (EDT) (envelope-from mike@sentex.net) Message-ID: <24fba042-3c77-4dc5-9660-c73a102e33ca@sentex.net> Date: Wed, 2 Oct 2024 08:59:09 -0400 List-Id: General discussion of FreeBSD hardware List-Archive: https://lists.freebsd.org/archives/freebsd-hardware List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hardware@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: watchdog timer programming (progress) To: Chris6 via freebsd-hardware References: <3065debc-8d4f-4487-abbb-c9408810cea6@sentex.net> <86plotbk5b.fsf@cthulhu.stephaner.labo.int> <9008b389-ab06-401d-9a95-84f849ca602a@sentex.net> <86plosdv48.fsf@cthulhu.stephaner.labo.int> <78e9461c-b93d-403f-b3a1-3568548b9283@sentex.net> <86h6a1egcs.fsf@cthulhu.stephaner.labo.int> <868qvddwph.fsf@cthulhu.stephaner.labo.int> <2d850ccc-2e90-4a1a-927c-045d4750d570@sentex.net> <864j5xehes.fsf@cthulhu.stephaner.labo.int> <86zfnocpb8.fsf@cthulhu.stephaner.labo.int> <8b730043-a759-4bb4-b7ee-323a317ce6d2@sentex.net> <1b346afb-d6ed-4f00-8dcf-5cdd389d210b@sentex.net> <82dc6dbf-8aa7-45ef-8fe9-08dc54973c2c@sentex.net> <86r08ydfb5.fsf@cthulhu.stephaner.labo.int> Content-Language: en-US From: mike tancsa Autocrypt: addr=mike@sentex.net; keydata= xsBNBFywzOMBCACoNFpwi5MeyEREiCeHtbm6pZJI/HnO+wXdCAWtZkS49weOoVyUj5BEXRZP xflV2ib2hflX4nXqhenaNiia4iaZ9ft3I1ebd7GEbGnsWCvAnob5MvDZyStDAuRxPJK1ya/s +6rOvr+eQiXYNVvfBhrCfrtR/esSkitBGxhUkBjOti8QwzD71JVF5YaOjBAs7jZUKyLGj0kW yDg4jUndudWU7G2yc9GwpHJ9aRSUN8e/mWdIogK0v+QBHfv/dsI6zVB7YuxCC9Fx8WPwfhDH VZC4kdYCQWKXrm7yb4TiVdBh5kgvlO9q3js1yYdfR1x8mjK2bH2RSv4bV3zkNmsDCIxjABEB AAHNHW1pa2UgdGFuY3NhIDxtaWtlQHNlbnRleC5uZXQ+wsCOBBMBCAA4FiEEmuvCXT0aY6hs 4SbWeVOEFl5WrMgFAl+pQfkCGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQeVOEFl5W rMiN6ggAk3H5vk8QnbvGbb4sinxZt/wDetgk0AOR9NRmtTnPaW+sIJEfGBOz47Xih+f7uWJS j+uvc9Ewn2Z7n8z3ZHJlLAByLVLtcNXGoRIGJ27tevfOaNqgJHBPbFOcXCBBFTx4MYMM4iAZ cDT5vsBTSaM36JZFtHZBKkuFEItbA/N8ZQSHKdTYMIA7A3OCLGbJBqloQ8SlW4MkTzKX4u7R yefAYQ0h20x9IqC5Ju8IsYRFacVZconT16KS81IBceO42vXTN0VexbVF2rZIx3v/NT75r6Vw 0FlXVB1lXOHKydRA2NeleS4NEG2vWqy/9Boj0itMfNDlOhkrA/0DcCurMpnpbM7ATQRcsMzk AQgA1Dpo/xWS66MaOJLwA28sKNMwkEk1Yjs+okOXDOu1F+0qvgE8sVmrOOPvvWr4axtKRSG1 t2QUiZ/ZkW/x/+t0nrM39EANV1VncuQZ1ceIiwTJFqGZQ8kb0+BNkwuNVFHRgXm1qzAJweEt RdsCMohB+H7BL5LGCVG5JaU0lqFU9pFP40HxEbyzxjsZgSE8LwkI6wcu0BLv6K6cLm0EiHPO l5G8kgRi38PS7/6s3R8QDsEtbGsYy6O82k3zSLIjuDBwA9GRaeigGppTxzAHVjf5o9KKu4O7 gC2KKVHPegbXS+GK7DU0fjzX57H5bZ6komE5eY4p3oWT/CwVPSGfPs8jOwARAQABwsB2BBgB CAAgFiEEmuvCXT0aY6hs4SbWeVOEFl5WrMgFAl+pQfkCGwwACgkQeVOEFl5WrMiVqwf9GwU8 c6cylknZX8QwlsVudTC8xr/L17JA84wf03k3d4wxP7bqy5AYy7jboZMbgWXngAE/HPQU95NM aukysSnknzoIpC96XZJ0okLBXVS6Y0ylZQ+HrbIhMpuQPoDweoF5F9wKrsHRoDaUK1VR706X rwm4HUzh7Jk+auuMYfuCh0FVlFBEuiJWMLhg/5WCmcRfiuB6F59ZcUQrwLEZeNhF2XJV4KwB Tlg7HCWO/sy1foE5noaMyACjAtAQE9p5kGYaj+DuRhPdWUTsHNuqrhikzIZd2rrcMid+ktb0 NvtvswzMO059z1YGMtGSqQ4srCArju+XHIdTFdiIYbd7+jeehg== In-Reply-To: <86r08ydfb5.fsf@cthulhu.stephaner.labo.int> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.86 X-Spamd-Result: default: False [-1.75 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-0.999]; NEURAL_SPAM_SHORT(0.64)[0.636]; R_SPF_ALLOW(-0.20)[+ip6:2607:f3e0::/32]; MIME_GOOD(-0.10)[text/plain]; RCVD_IN_DNSWL_LOW(-0.10)[199.212.134.19:received]; XM_UA_NO_VERSION(0.01)[]; ASN(0.00)[asn:11647, ipnet:2607:f3e0::/32, country:CA]; FREEFALL_USER(0.00)[mike]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_ONE(0.00)[1]; MID_RHS_MATCH_FROM(0.00)[]; R_DKIM_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; DMARC_NA(0.00)[sentex.net]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hardware@freebsd.org]; RCVD_COUNT_TWO(0.00)[2]; TO_DN_ALL(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ARC_NA(0.00)[] X-Rspamd-Queue-Id: 4XJZdF6h6sz4crj X-Spamd-Bar: - On 10/2/2024 5:13 AM, Stephane Rochoy wrote: >> >> it seems the soft timeout value action is never overridden for some >> reason. >> >> This kinda feels like a bug / pr ? > > Well, honestly I'm puzzled: > - in one hand, watchdog.c don't seems to use wd_softtimeout_act > - and on the other hand hardclock seems to directly call >  watchdog_fire which just kdb_enter or panic. > > Note that wd_timeout_cb seems to be about both pretimeout and > timeout handling. > I was able to get things to work the way I want by setting the pre-action timeout. But, I need to set things 'right' the first time I call it.  If I do 0{p9999}# watchdogd --pretimeout-action panic --softtimeout-action panic -t 10 0{p9999}# killall -9 watchdogd 0{p9999}# KDB: stack backtrace: #0 0xffffffff80b7fefd at kdb_backtrace+0x5d #1 0xffffffff80abec93 at hardclock+0x103 #2 0xffffffff80abfe8b at handleevents+0xab #3 0xffffffff80ac0b7c at timercb+0x24c #4 0xffffffff810d0ebb at lapic_handle_timer+0xab #5 0xffffffff80fd8a71 at Xtimerint+0xb1 #6 0xffffffff804b3685 at acpi_cpu_idle+0x2c5 #7 0xffffffff80fc48f6 at cpu_idle_acpi+0x46 #8 0xffffffff80fc49ad at cpu_idle+0x9d #9 0xffffffff80b67bb6 at sched_idletd+0x576 #10 0xffffffff80aecf7f at fork_exit+0x7f #11 0xffffffff80fd7dae at fork_trampoline+0xe 0{p9999}# 0{p9999}# watchdogd --pretimeout-action panic --softtimeout --softtimeout-action panic -t 10 watchdogd: setting WDIOC_SETSOFT 1: Invalid argument watchdogd: patting the dog: Invalid argument 71{p9999}# But if I reboot the box and make sure nothing is set, and start the daemon watchdogd --pretimeout-action panic --softtimeout --softtimeout-action panic -t 10 it works 0{p9999}# watchdogd --pretimeout-action panic --softtimeout --softtimeout-action panic -t 10 0{p9999}# killall -9 watchdogd 0{p9999}# panic: watchdog soft-timeout, WD_SOFT_PANIC set cpuid = 0 time = 1727873819 KDB: stack backtrace: #0 0xffffffff80b7fefd at kdb_backtrace+0x5d #1 0xffffffff80b32bd1 at vpanic+0x131 #2 0xffffffff80b32a93 at panic+0x43 #3 0xffffffff809827bb at wd_timeout_cb+0x6b #4 0xffffffff80b50b0c at softclock_call_cc+0x12c #5 0xffffffff80b52355 at softclock_thread+0xe5 #6 0xffffffff80aecf7f at fork_exit+0x7f #7 0xffffffff80fd7dae at fork_trampoline+0xe Timeout initializing vt_vga Uptime: 50s Automatic reboot in 15 seconds - press a key on the console to abort I think some of the dead ends I ran into was due to this reason. My stock image has watchdogd_enable="YES" and having that start up would set something that would then lead to dead ends. But, if I JUST start up watchdogd --pretimeout-action panic --softtimeout --softtimeout-action panic -t 10 it works.  I wonder if warrants a PR for the docs at least. Anyways, thanks again for helping me work through all this!     ---Mike