Date: Thu, 17 Sep 2020 20:02:47 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 249408] ARM64 MMCCAM: exclusive sleep mutex CAM device lock Message-ID: <bug-249408-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249408 Bug ID: 249408 Summary: ARM64 MMCCAM: exclusive sleep mutex CAM device lock Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: gbe@FreeBSD.org Booting a MMCCAM enabled kernel of a recent -CURRENT leads to the following 'exclusive sleep mutex CAM device lock' error message. uma_zalloc_debug: zone "128" with the following non-sleepable locks held: exclusive sleep mutex CAM device lock (CAM device lock) r = 0 (0xffffa00000e264d0) locked @ /tank/nfs_public/tiny/src/sys/cam/mmc/mmc_da.c:1105 stack backtrace: #0 0xffff0000004d47c4 at witness_debugger+0x64 #1 0xffff0000004d56d8 at witness_warn+0x21c #2 0xffff0000006bf754 at uma_zalloc_debug+0x30 #3 0xffff0000006bf50c at uma_zalloc_arg+0x28 #4 0xffff00000044c32c at uma_zallouhub1 on uhub0 #5 0xffff00000044c130 at malloc+0x94 #6 0xffff0000000fa2f8 at sdda_add_part+0xe0 #7 0xffff0000000f8c9c at sdda_start_init+0x97c #8 0xffff0000000f82e0 at sdda_start_init_task+0xbc #9 0xffff0000004c82ac at taskqueue_run_locked+0xac #10 0xffff0000004c9098 at taskqueue_thread_loop+0x68 #11 0xffff000000433170 at fork_exit+0x80 System is an RPi4B with the following kernel config: include GENERIC options RATELIMIT options TCPHPTS options CAMDEBUG options CAM_DEBUG_FLAGS=(CAM_DEBUG_INFO|CAM_DEBUG_PROBE|CAM_DEBUG_PERIPH) device pass options MMCCAM nodevice mmc nodevice mmcsd -- You are receiving this mail because: You are the assignee for the bug.help
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