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Mon, 18 Aug 2025 12:22:22 -0700 (PDT) Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20250818124505.781598737@linuxfoundation.org> In-Reply-To: <20250818124505.781598737@linuxfoundation.org> From: Naresh Kamboju Date: Tue, 19 Aug 2025 00:52:11 +0530 X-Gm-Features: Ac12FXwVOEvsYKs2Hj_OhG9gGnWNHFXCh_3DRHC0oFh_uKaf6Yom4JJ2icGbgRA Message-ID: Subject: Re: [PATCH 6.16 000/570] 6.16.2-rc1 review To: Greg Kroah-Hartman Cc: stable@vger.kernel.org, patches@lists.linux.dev, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org, patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@denx.de, jonathanh@nvidia.com, f.fainelli@gmail.com, sudipm.mukherjee@gmail.com, srw@sladewatkins.net, rwarsow@gmx.de, conor@kernel.org, hargar@microsoft.com, broonie@kernel.org, achill@achill.org, Ben Copeland , Arnd Bergmann , Dan Carpenter , Anders Roxell , Bartosz Golaszewski , Bjorn Andersson , srinivas.kandagatla@oss.qualcomm.com Content-Type: text/plain; charset="UTF-8" On Mon, 18 Aug 2025 at 19:14, Greg Kroah-Hartman wrote: > > This is the start of the stable review cycle for the 6.16.2 release. > There are 570 patches in this series, all will be posted as a response > to this one. If anyone has any issues with these being applied, please > let me know. > > Responses should be made by Wed, 20 Aug 2025 12:43:43 +0000. > Anything received after that time might be too late. > > The whole patch series can be found in one patch at: > https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.16.2-rc1.gz > or in the git tree and branch at: > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.16.y > and the diffstat can be found below. > > thanks, > > greg k-h Boot regression occurs on the Qualcomm DragonBoard 410c (arm64) with stable-rc 6.16.2-rc1. The kernel crashes during early boot with a NULL pointer dereference in the Qualcomm SCM/TZMEM subsystem. The crash originates in qcom_scm_shm_bridge_enable() (drivers/firmware/qcom/qcom_scm.c) and is invoked by qcom_tzmem_enable() (drivers/firmware/qcom/qcom_tzmem.c). This happens while probing SCM during platform initialization, preventing the board from reaching userspace due to kernel panic. Regression Analysis: - New regression? yes - Reproducibility? yes Boot regression: stable-rc 6.16.2-rc1 arm64 Qualcomm Dragonboard 410c kernel NULL pointer dereference qcom_scm_shm_bridge_enable qcom_tzmem_enable Reported-by: Linux Kernel Functional Testing ## Test log [ 1.011897] scmi_core: SCMI protocol bus registered [ 1.014070] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 1.018776] Mem abort info: [ 1.027774] ESR = 0x0000000096000004 [ 1.030282] EC = 0x25: DABT (current EL), IL = 32 bits [ 1.034116] SET = 0, FnV = 0 [ 1.039581] EA = 0, S1PTW = 0 [ 1.042433] FSC = 0x04: level 0 translation fault [ 1.045486] Data abort info: [ 1.050341] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 1.053464] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 1.058768] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 1.063891] [0000000000000000] user address but active_mm is swapper [ 1.069276] Internal error: Oops: 0000000096000004 [#1] SMP [ 1.075601] Modules linked in: [ 1.081240] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.16.2-rc1 #1 PREEMPT [ 1.084114] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 1.091663] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 1.098607] pc : qcom_scm_shm_bridge_enable (drivers/firmware/qcom/qcom_scm.c:1618) [ 1.105285] lr : qcom_tzmem_enable (drivers/firmware/qcom/qcom_tzmem.c:98 drivers/firmware/qcom/qcom_tzmem.c:475) [ 1.110491] sp : ffff80008002b730 [ 1.114916] x29: ffff80008002b7c0 x28: 0000000000000000 x27: 0000000000000000 [ 1.118226] x26: 0000000000000000 x25: 0000000000000000 x24: ffff00003fcf2028 [ 1.125343] x23: ffff00003fcc1798 x22: 0000000000000000 x21: ffff000002cdf410 [ 1.132460] x20: ffff000002cdf400 x19: ffff80008288a000 x18: ffff8000813951f0 [ 1.139579] x17: 0000000000000000 x16: 00000000ffffffff x15: fffffffffffffc00 [ 1.146696] x14: ffffffffffffffff x13: 0000000000000020 x12: 0000000000000002 [ 1.153814] x11: 0000000000000000 x10: 0000000000000019 x9 : 0000000000000001 [ 1.160932] x8 : 0000000000000000 x7 : 7f7f7f7f7f7f7f7f x6 : fefefeff35302f37 [ 1.168052] x5 : 8080808000000000 x4 : 0000000000000020 x3 : 0000000036313038 [ 1.175169] x2 : 000000000000001c x1 : 000000000000000c x0 : 0000000000000000 [ 1.182289] Call trace: [ 1.189393] qcom_scm_shm_bridge_enable (drivers/firmware/qcom/qcom_scm.c:1618) (P) [ 1.191658] qcom_tzmem_enable (drivers/firmware/qcom/qcom_tzmem.c:98 drivers/firmware/qcom/qcom_tzmem.c:475) [ 1.196862] qcom_scm_probe (drivers/firmware/qcom/qcom_scm.c:2259) [ 1.200941] platform_probe (drivers/base/platform.c:1405) [ 1.204587] really_probe (drivers/base/dd.c:581 drivers/base/dd.c:657) [ 1.208408] __driver_probe_device (drivers/base/dd.c:0) [ 1.212055] driver_probe_device (drivers/base/dd.c:829) [ 1.216394] __driver_attach (drivers/base/dd.c:1216) [ 1.220299] bus_for_each_dev (drivers/base/bus.c:369) [ 1.224118] driver_attach (drivers/base/dd.c:1233) [ 1.228285] bus_add_driver (drivers/base/bus.c:679) [ 1.231844] driver_register (drivers/base/driver.c:250) [ 1.235403] __platform_driver_register (drivers/base/platform.c:867) [ 1.239225] qcom_scm_init (drivers/firmware/qcom/qcom_scm.c:2365) [ 1.244083] do_one_initcall (init/main.c:1252 init/main.c:1275) [ 1.247730] do_initcall_level (init/main.c:1335) [ 1.251289] do_initcalls (init/main.c:1349) [ 1.255455] do_basic_setup (init/main.c:1372) [ 1.258666] kernel_init_freeable (init/main.c:1588) [ 1.262488] kernel_init (init/main.c:1476) [ 1.266826] ret_from_fork (arch/arm64/kernel/entry.S:848) [ 1.270045] Code: a904ffff a903ffff a902ffff a900ffff (f9400100) All code ======== Code starting with the faulting instruction =========================================== [ 1.273870] ---[ end trace 0000000000000000 ]--- [ 1.279875] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 1.284550] SMP: stopping secondary CPUs [ 1.291930] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- Please refer full test log information in the below links. ## Source * Kernel version: 6.16.2-rc1 * Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git * Git describe: v6.16-1192-g7439b60c7df9 * Git commit: 7439b60c7df9cf7683dbfe417d128304e34a4f22 * Architectures: arm64 Dragonboard 410c * Toolchains: gcc-13, clang-20 * Kconfigs: defconfig+lkft ## Test * Boot log: https://qa-reports.linaro.org/api/testruns/29589924/log_file/ * Boot lava log: https://lkft.validation.linaro.org/scheduler/job/8407950#L2304 * Boot details: https://regressions.linaro.org/lkft/linux-stable-rc-linux-6.16.y/v6.16-1192-g7439b60c7df9/log-parser-boot/panic-multiline-kernel-panic-not-syncing-attempted-to-kill-init-exitcode/ * Boot plan: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/31SnSReSLRhyKacT9vTgYiE9GRJ * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/31SnQ9iEVyT81yLXvTtUzBV7I4A/ * Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/31SnQ9iEVyT81yLXvTtUzBV7I4A/config -- Linaro LKFT https://lkft.linaro.org