From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-177.mta1.migadu.com (out-177.mta1.migadu.com [95.215.58.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D550D433BB for ; Fri, 16 Aug 2024 04:14:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.177 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723781690; cv=none; b=NJfnDzzrGabtpJdNXlWD0n89XrYkDxUlQF26wrqsmpgDdstAK2aHAiaEENdQ/yf7CsEL3AGezTzfsCl3qGb3h69OQG9w36O8qM6wS5c9fimnYeEuriGRS36l5m3cXub2D4cJ9NZM9XpD0X1CZWUseyTw3Hg0XvSb0KmbFvhPrUo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723781690; c=relaxed/simple; bh=duP1vGoMzbxS5yPzOCkcyW2w2y8wOULGNGndCchHmjE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=b9oRfDqprMmHuJZq5jEx9cC3lp7z1cBBcIUmNi7IoyoblcgtCZYXe1ZXNdKuuRhL5eLNZpkozpvRsTWCv2iBYz9njmd6QoRsU8Ttz4HVGpuAKklBog/LPv+dfjAtQv9Q21jzOHEKxG9TSBVZMl2S1he0Pi+u46WCCzHjv4TriGs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=QBPygkPN; arc=none smtp.client-ip=95.215.58.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="QBPygkPN" Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1723781684; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FOF2e68xaqjE/W7EPQ4FvwPwmf0ekZO2W737iTABuiA=; b=QBPygkPNMYDiEaHoml+SLakdrKd6VTxWsSgKPnveOlt6NigKye3zhcMP89T4IxO0WImcID pGPrG4aDQZvuVFerNrLU60JN2FJJN0Q22tNmou1p2Wf2nIc0d4i6fAt/okVUe2LLAA/NMI P+LhGweZdrDrE+FkdQGgy8PQhOVcj70= Date: Fri, 16 Aug 2024 12:14:34 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [linus:master] [RDMA/iwcm] aee2424246: WARNING:at_kernel/workqueue.c:#check_flush_dependency To: kernel test robot , Bart Van Assche Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, Leon Romanovsky , Shin'ichiro Kawasaki , linux-rdma@vger.kernel.org References: <202408151633.fc01893c-oliver.sang@intel.com> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Zhu Yanjun In-Reply-To: <202408151633.fc01893c-oliver.sang@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT 在 2024/8/16 9:07, kernel test robot 写道: > > Hello, > > kernel test robot noticed "WARNING:at_kernel/workqueue.c:#check_flush_dependency" on: > > commit: aee2424246f9f1dadc33faa78990c1e2eb7826e4 ("RDMA/iwcm: Fix a use-after-free related to destroying CM IDs") > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master > > [test failed on linus/master 5189dafa4cf950e675f02ee04b577dfbbad0d9b1] > [test failed on linux-next/master 61c01d2e181adfba02fe09764f9fca1de2be0dbe] > > in testcase: blktests > version: blktests-x86_64-775a058-1_20240702 > with following parameters: > > disk: 1SSD > test: nvme-group-01 > nvme_trtype: rdma Hi, Bart && Jason && Leon It seems that it is related with WQ_MEM_RECLAIM. Not sure if adding WQ_MEM_RECLAIM to iw_cm_wq can fix this or not. Best Regards, Zhu Yanjun > > > > compiler: gcc-12 > test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480+ (Sapphire Rapids) with 256G memory > > (please refer to attached dmesg/kmsg for entire log/backtrace) > > > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-lkp/202408151633.fc01893c-oliver.sang@intel.com > > > [ 125.048981][ T1430] ------------[ cut here ]------------ > [ 125.056856][ T1430] workqueue: WQ_MEM_RECLAIM nvme-reset-wq:nvme_rdma_reset_ctrl_work [nvme_rdma] is flushing !WQ_MEM_RECLAIM iw_cm_wq:0x0 > [ 125.056873][ T1430] WARNING: CPU: 2 PID: 1430 at kernel/workqueue.c:3706 check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) > [ 125.085014][ T1430] Modules linked in: siw ib_uverbs nvmet_rdma nvmet nvme_rdma nvme_fabrics rdma_cm iw_cm ib_cm ib_core dimlib dm_multipath btrfs blake2b_generic intel_rapl_msr xor intel_rapl_common zstd_compress intel_uncore_frequency intel_uncore_frequency_common raid6_pq libcrc32c x86_pkg_temp_thermal intel_powerclamp coretemp nvme nvme_core ast t10_pi kvm_intel qat_4xxx drm_shmem_helper mei_me kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel sha512_ssse3 rapl intel_cstate intel_uncore dax_hmem intel_th_gth intel_qat crc64_rocksoft_generic dh_generic intel_th_pci idxd crc8 i2c_i801 crc64_rocksoft mei intel_vsec idxd_bus drm_kms_helper intel_th authenc crc64 i2c_smbus i2c_ismt ipmi_ssif wmi acpi_power_meter ipmi_si acpi_ipmi ipmi_devintf ipmi_msghandler acpi_pad binfmt_misc loop fuse drm dm_mod ip_tables [last unloaded: ib_uverbs] > [ 125.176472][ T1430] CPU: 2 PID: 1430 Comm: kworker/u898:26 Not tainted 6.10.0-rc1-00015-gaee2424246f9 #1 > [ 125.188840][ T1430] Workqueue: nvme-reset-wq nvme_rdma_reset_ctrl_work [nvme_rdma] > [ 125.199152][ T1430] RIP: 0010:check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) > [ 125.207527][ T1430] Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 a8 00 00 00 49 8b 54 24 18 49 8d b5 c0 00 00 00 49 89 e8 48 c7 c7 20 46 08 84 e8 ed 8b f9 ff <0f> 0b e9 93 fd ff ff e8 a1 bf 82 00 e9 80 fd ff ff e8 97 bf 82 00 > All code > ======== > 0: fa cli > 1: 48 c1 ea 03 shr $0x3,%rdx > 5: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) > 9: 0f 85 a8 00 00 00 jne 0xb7 > f: 49 8b 54 24 18 mov 0x18(%r12),%rdx > 14: 49 8d b5 c0 00 00 00 lea 0xc0(%r13),%rsi > 1b: 49 89 e8 mov %rbp,%r8 > 1e: 48 c7 c7 20 46 08 84 mov $0xffffffff84084620,%rdi > 25: e8 ed 8b f9 ff callq 0xfffffffffff98c17 > 2a:* 0f 0b ud2 <-- trapping instruction > 2c: e9 93 fd ff ff jmpq 0xfffffffffffffdc4 > 31: e8 a1 bf 82 00 callq 0x82bfd7 > 36: e9 80 fd ff ff jmpq 0xfffffffffffffdbb > 3b: e8 97 bf 82 00 callq 0x82bfd7 > > Code starting with the faulting instruction > =========================================== > 0: 0f 0b ud2 > 2: e9 93 fd ff ff jmpq 0xfffffffffffffd9a > 7: e8 a1 bf 82 00 callq 0x82bfad > c: e9 80 fd ff ff jmpq 0xfffffffffffffd91 > 11: e8 97 bf 82 00 callq 0x82bfad > [ 125.231266][ T1430] RSP: 0018:ffa000001375fb88 EFLAGS: 00010282 > [ 125.239626][ T1430] RAX: 0000000000000000 RBX: ff11000341233c00 RCX: 0000000000000027 > [ 125.250304][ T1430] RDX: 0000000000000027 RSI: 0000000000000004 RDI: ff110017fc930b08 > [ 125.260878][ T1430] RBP: 0000000000000000 R08: 0000000000000001 R09: ffe21c02ff926161 > [ 125.271664][ T1430] R10: ff110017fc930b0b R11: 0000000000000010 R12: ff1100208d2a4000 > [ 125.282387][ T1430] R13: ff1100020d87a000 R14: 0000000000000000 R15: ff11000341233c00 > [ 125.292984][ T1430] FS: 0000000000000000(0000) GS:ff110017fc900000(0000) knlGS:0000000000000000 > [ 125.304552][ T1430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 125.313446][ T1430] CR2: 00007fa84066aa1c CR3: 000000407c85a005 CR4: 0000000000f71ef0 > [ 125.324080][ T1430] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 125.334584][ T1430] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 > [ 125.345252][ T1430] PKRU: 55555554 > [ 125.350876][ T1430] Call Trace: > [ 125.356281][ T1430] > [ 125.361285][ T1430] ? __warn (kernel/panic.c:693) > [ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) > [ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219) > [ 125.382505][ T1430] ? handle_bug (arch/x86/kernel/traps.c:239) > [ 125.388987][ T1430] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1)) > [ 125.395831][ T1430] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) > [ 125.403125][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) > [ 125.410984][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) > [ 125.418764][ T1430] __flush_workqueue (kernel/workqueue.c:3970) > [ 125.426021][ T1430] ? __pfx___might_resched (kernel/sched/core.c:10151) > [ 125.433431][ T1430] ? destroy_cm_id (drivers/infiniband/core/iwcm.c:375) iw_cm > [ 125.440844][ T2411] /usr/bin/wget -q --timeout=3600 --tries=1 --local-encoding=UTF-8 http://internal-lkp-server:80/~lkp/cgi-bin/lkp-jobfile-append-var?job_file=/lkp/jobs/scheduled/lkp-spr-2sp1/blktests-1SSD-rdma-nvme-group-01-debian-12-x86_64-20240206.cgz-aee2424246f9-20240809-69442-1dktaed-4.yaml&job_state=running -O /dev/null > [ 125.441209][ T1430] ? __pfx___flush_workqueue (kernel/workqueue.c:3910) > [ 125.441215][ T2411] > [ 125.473900][ T1430] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) > [ 125.473909][ T1430] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161) > [ 125.480265][ T2411] target ucode: 0x2b0004b1 > [ 125.482537][ T1430] _destroy_id (drivers/infiniband/core/cma.c:2044) rdma_cm > [ 125.488511][ T2411] > [ 125.495072][ T1430] nvme_rdma_free_queue (drivers/nvme/host/rdma.c:656 drivers/nvme/host/rdma.c:650) nvme_rdma > [ 125.500747][ T2411] LKP: stdout: 2876: current_version: 2b0004b1, target_version: 2b0004b1 > [ 125.505827][ T1430] nvme_rdma_reset_ctrl_work (drivers/nvme/host/rdma.c:2180) nvme_rdma > [ 125.505831][ T1430] process_one_work (kernel/workqueue.c:3231) > [ 125.508377][ T2411] > [ 125.515122][ T1430] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3393) > [ 125.515127][ T1430] ? __pfx_worker_thread (kernel/workqueue.c:3339) > [ 125.524642][ T2411] check_nr_cpu > [ 125.531837][ T1430] kthread (kernel/kthread.c:389) > [ 125.537327][ T2411] > [ 125.539864][ T1430] ? __pfx_kthread (kernel/kthread.c:342) > [ 125.545392][ T2411] CPU(s): 224 > [ 125.550628][ T1430] ret_from_fork (arch/x86/kernel/process.c:147) > [ 125.554342][ T2411] > [ 125.558840][ T1430] ? __pfx_kthread (kernel/kthread.c:342) > [ 125.558844][ T1430] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) > [ 125.561843][ T2411] On-line CPU(s) list: 0-223 > [ 125.566487][ T1430] > [ 125.566488][ T1430] ---[ end trace 0000000000000000 ]--- > > > > The kernel config and materials to reproduce are available at: > https://download.01.org/0day-ci/archive/20240815/202408151633.fc01893c-oliver.sang@intel.com > > > -- Best Regards, Yanjun.Zhu