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Fri, 19 Jun 2020 18:28:10 -0400 (EDT) To: current@freebsd.org From: Yuri Pankov Subject: uma_zalloc_debug warnings after r362231 Message-ID: Date: Sat, 20 Jun 2020 01:28:09 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 49pYYx5wyzz3dWT X-Spamd-Bar: +++++++++ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yuripv.dev header.s=fm1 header.b=XUMfbHHq; dkim=pass header.d=messagingengine.com header.s=fm3 header.b=G2dbNoXH; dmarc=none; spf=pass (mx1.freebsd.org: domain of yuripv@yuripv.dev designates 66.111.4.26 as permitted sender) smtp.mailfrom=yuripv@yuripv.dev X-Spamd-Result: default: False [9.77 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; SEM_URIBL_FRESH15(3.00)[yuripv.dev:dkim]; R_SPF_ALLOW(0.00)[+ip4:66.111.4.26:c]; RWL_MAILSPIKE_GOOD(0.00)[66.111.4.26:from]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[yuripv.dev:+,messagingengine.com:+]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:11403, ipnet:66.111.4.0/24, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[66.111.4.26:from]; ARC_NA(0.00)[]; RECEIVED_SPAMHAUS_XBL(5.00)[91.240.124.137:received]; R_DKIM_ALLOW(0.00)[yuripv.dev:s=fm1,messagingengine.com:s=fm3]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM_SHORT(0.00)[0.002]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[current@freebsd.org]; DMARC_NA(0.00)[yuripv.dev]; NEURAL_SPAM_MEDIUM(0.94)[0.937]; RCPT_COUNT_ONE(0.00)[1]; BAD_REP_POLICIES(0.10)[]; NEURAL_SPAM_LONG(0.93)[0.934]; GREYLIST(0.00)[pass,body] X-Spam: Yes X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Jun 2020 22:36:22 -0000 I've started getting the following after r362231 (I think) when plugging USB drive, not seeing any real issues though: ugen0.9: at usbus0 umass0 numa-domain 0 on uhub4 umass0: on usbus0 umass0: SCSI over Bulk-Only; quirks = 0xc101 umass0:2:0: Attached to scbus2 uma_zalloc_debug: zone "kenv" with the following non-sleepable locks held: exclusive sleep mutex CAM device lock (CAM device lock) r = 0 (0xfffff8000dcb6cd0) locked @ /usr/src/sys/cam/scsi/scsi_pass.c:674 stack backtrace: #0 0xffffffff80c32981 at witness_debugger+0x71 #1 0xffffffff80c3391d at witness_warn+0x40d #2 0xffffffff80efe426 at uma_zalloc_arg+0x46 #3 0xffffffff80b741da at getenv_string_buffer+0x3a #4 0xffffffff80b74907 at getenv_quad+0x17 #5 0xffffffff80b748d2 at getenv_int+0x12 #6 0xffffffff803a7f1a at daregister+0x1ea #7 0xffffffff8037445b at cam_periph_alloc+0x57b #8 0xffffffff803a7872 at daasync+0x2c2 #9 0xffffffff80381aa2 at xpt_async_process_dev+0x152 #10 0xffffffff8037d682 at xpt_async_process+0x312 #11 0xffffffff8037ddf2 at xpt_done_process+0x382 #12 0xffffffff8037fdb5 at xpt_done_td+0xf5 #13 0xffffffff80b831e0 at fork_exit+0x80 #14 0xffffffff810413ce at fork_trampoline+0xe da0 at umass-sim0 bus 0 scbus2 target 0 lun 0 da0: Fixed Direct Access SPC-4 SCSI device da0: Serial Number 575845314136394150553136 da0: 40.000MB/s transfers da0: 953837MB (1953458176 512 byte sectors) da0: quirks=0x2