From owner-freebsd-x11@freebsd.org Mon Nov 11 12:29:05 2019 Return-Path: Delivered-To: freebsd-x11@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 513851B477B; Mon, 11 Nov 2019 12:29:05 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 47BVYD2jtqz473n; Mon, 11 Nov 2019 12:29:03 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from tom.home (kib@localhost [127.0.0.1]) by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id xABCSojx070757 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Mon, 11 Nov 2019 14:28:53 +0200 (EET) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua xABCSojx070757 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id xABCSoQr070756; Mon, 11 Nov 2019 14:28:50 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Mon, 11 Nov 2019 14:28:50 +0200 From: Konstantin Belousov To: Hans Petter Selasky Cc: sgk@troutmask.apl.washington.edu, Mark Johnston , freebsd-current@freebsd.org, freebsd-x11@freebsd.org Subject: Re: unkillable process consuming 100% cpu Message-ID: <20191111122850.GO2707@kib.kiev.ua> References: <20191107202919.GA4565@troutmask.apl.washington.edu> <20191107203223.GF16978@raichu> <20191108220935.GA856@troutmask.apl.washington.edu> <6a4e5993-623a-ebaa-8180-e11c7d48e706@selasky.org> <3e11232b-e2a6-9169-adb0-da0e94523b39@selasky.org> <64e980fa-aa9b-e656-92a1-110d9cbf9059@selasky.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <64e980fa-aa9b-e656-92a1-110d9cbf9059@selasky.org> User-Agent: Mutt/1.12.2 (2019-09-21) X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FORGED_GMAIL_RCVD,FREEMAIL_FROM, NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on tom.home X-Rspamd-Queue-Id: 47BVYD2jtqz473n X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=gmail.com (policy=none); spf=softfail (mx1.freebsd.org: 2001:470:d5e7:1::1 is neither permitted nor denied by domain of kostikbel@gmail.com) smtp.mailfrom=kostikbel@gmail.com X-Spamd-Result: default: False [-2.00 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; DMARC_POLICY_SOFTFAIL(0.10)[gmail.com : No valid SPF, No valid DKIM,none]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; HAS_XAW(0.00)[]; R_SPF_SOFTFAIL(0.00)[~all:c]; RCPT_COUNT_FIVE(0.00)[5]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(0.00)[ip: (-2.66), ipnet: 2001:470::/32(-4.62), asn: 6939(-3.49), country: US(-0.05)]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-x11@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: X11 on FreeBSD -- maintaining and support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Nov 2019 12:29:05 -0000 On Mon, Nov 11, 2019 at 01:22:09PM +0100, Hans Petter Selasky wrote: > On 2019-11-11 11:44, Hans Petter Selasky wrote: > > Seems like we can optimise away one more write memory barrier. > > > > If you are building from ports, simply: > > > > cd work/kms-drm* > > cat seqlock.diff | patch -p1 > > > > Hi, > > Here is one more debug patch you can try. See if you get that print > added in the patch in dmesg. > > --HPS > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > index a6e0a16ae..0697d70f4 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > @@ -31,6 +31,8 @@ > #include "amdgpu_vm.h" > #include "amdgpu_amdkfd.h" > > +#include > + > /* Special VM and GART address alignment needed for VI pre-Fiji due to > * a HW bug. > */ > @@ -236,6 +238,12 @@ static int amdgpu_amdkfd_remove_eviction_fence(struct amdgpu_bo *bo, > *ef_count = 0; > } > > + if (resv != NULL && > + (struct thread *)SX_OWNER(resv->lock.base.sx.sx_lock) != curthread) { This is really should be spelled as sx_xlocked(). > + printf("Called unlocked\n"); > + kdb_backtrace(); > + } > + > old = reservation_object_get_list(resv); > if (!old) > return 0; > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"