On Fri, May 12, 2023 at 01:56:30PM +0000, Chuck Lever III wrote: > > > > On May 12, 2023, at 6:32 AM, Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote: > > > > I'm pretty sure Chuck Lever did this intentionally, but he's not on the > > CC list. Let's add him. > > > > regards, > > dan carpenter > > > > On Fri, May 12, 2023 at 06:15:04PM +0530, Naresh Kamboju wrote: > >> Following kernel warning has been noticed on qemu-arm64 while running kunit > >> tests while booting Linux 6.4.0-rc1-next-20230512 and It was started from > >> 6.3.0-rc7-next-20230420. > >> > >> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> > >> > >> This is always reproducible on qemu-arm64, qemu-arm, qemu-x86 and qemu-i386. > >> Is this expected warning as a part of kunit tests ? > > Dan's correct, this Kunit test is supposed to check the > behavior of the API when a too-large privsize is specified. > > I'm not sure how to make this work without the superfluous > warning. Would adding GFP_NOWARN to the allocation help? Yes, it should. > >> Crash log: > >> ----------- > >> > >> [ 663.530868] KTAP version 1 > >> [ 663.531545] # Subtest: Handshake API tests > >> [ 663.533521] 1..11 > >> [ 663.534424] KTAP version 1 > >> [ 663.535406] # Subtest: req_alloc API fuzzing > >> [ 663.542460] ok 1 handshake_req_alloc NULL proto > >> [ 663.550345] ok 2 handshake_req_alloc CLASS_NONE > >> [ 663.558041] ok 3 handshake_req_alloc CLASS_MAX > >> [ 663.565790] ok 4 handshake_req_alloc no callbacks > >> [ 663.573882] ok 5 handshake_req_alloc no done callback > >> [ 663.580284] ------------[ cut here ]------------ > >> [ 663.582129] WARNING: CPU: 0 PID: 1200 at mm/page_alloc.c:4744 > >> __alloc_pages+0x2e8/0x3a0 > >> [ 663.585675] Modules linked in: > >> [ 663.587808] CPU: 0 PID: 1200 Comm: kunit_try_catch Tainted: G > >> N 6.4.0-rc1-next-20230512 #1 > >> [ 663.589817] Hardware name: linux,dummy-virt (DT) > >> [ 663.591426] pstate: 22400005 (nzCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) > >> [ 663.592978] pc : __alloc_pages+0x2e8/0x3a0 > >> [ 663.594236] lr : __kmalloc_large_node+0xbc/0x160 > >> [ 663.595548] sp : ffff80000a317bc0 > >> [ 663.596577] x29: ffff80000a317bc0 x28: 0000000000000000 x27: 0000000000000000 > >> [ 663.598863] x26: ffff0000c8925b20 x25: 0000000000000000 x24: 0000000000000015 > >> [ 663.601098] x23: 0000000000040dc0 x22: ffffbf424e7420c8 x21: ffffbf424e7420c8 > >> [ 663.603100] x20: 1ffff00001462f88 x19: 0000000000040dc0 x18: 0000000078b4155a > >> [ 663.605582] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 > >> [ 663.607328] x14: 0000000000000000 x13: 6461657268745f68 x12: ffff60001913bc5a > >> [ 663.609355] x11: 1fffe0001913bc59 x10: ffff60001913bc59 x9 : 1fffe0001913bc59 > >> [ 663.611004] x8 : 0000000041b58ab3 x7 : ffff700001462f88 x6 : dfff800000000000 > >> [ 663.613556] x5 : 00000000f1f1f1f1 x4 : 00000000f2f2f200 x3 : 0000000000000000 > >> [ 663.615364] x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffffbf42516818e2 > >> [ 663.617753] Call trace: > >> [ 663.618486] __alloc_pages+0x2e8/0x3a0 > >> [ 663.619613] __kmalloc_large_node+0xbc/0x160 > >> [ 663.621454] __kmalloc+0x84/0x94 > >> [ 663.622551] handshake_req_alloc+0x74/0xe8 > >> [ 663.623801] handshake_req_alloc_case+0xa0/0x170 > >> [ 663.625467] kunit_try_run_case+0x7c/0x100 > >> [ 663.626592] kunit_generic_run_threadfn_adapter+0x30/0x4c > >> [ 663.628998] kthread+0x1d4/0x1e4 > >> [ 663.629715] ret_from_fork+0x10/0x20 > >> [ 663.631094] ---[ end trace 0000000000000000 ]--- > >> [ 663.643101] ok 6 handshake_req_alloc excessive privsize > >> [ 663.649446] ok 7 handshake_req_alloc all good > >> [ 663.651032] # req_alloc API fuzzing: pass:7 fail:0 skip:0 total:7 > >> [ 663.653941] ok 1 req_alloc API fuzzing > >> [ 663.665951] ok 2 req_submit NULL req arg > >> [ 663.674278] ok 3 req_submit NULL sock arg > >> [ 663.682968] ok 4 req_submit NULL sock->file > >> [ 663.694323] ok 5 req_lookup works > >> [ 663.703604] ok 6 req_submit max pending > >> [ 663.714655] ok 7 req_submit multiple > >> [ 663.725174] ok 8 req_cancel before accept > >> [ 663.733780] ok 9 req_cancel after accept > >> [ 663.742528] ok 10 req_cancel after done > >> [ 663.750637] ok 11 req_destroy works > >> [ 663.751884] # Handshake API tests: pass:11 fail:0 skip:0 total:11 > >> [ 663.753579] # Totals: pass:17 fail:0 skip:0 total:17 > >> > >> links: > >> ------ > >> > >> - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230512/testrun/16901289/suite/log-parser-boot/test/check-kernel-exception/log > >> - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230512/testrun/16901289/suite/log-parser-boot/tests/ > >> - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230420/testrun/16385677/suite/log-parser-boot/test/check-kernel-warning-ac79d2ca0f443d407d9749244f1738c9a2b123c609820f82d9e8907c756f5340/log > >> - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230512/testrun/16901289/suite/log-parser-boot/test/check-kernel-warning-ac79d2ca0f443d407d9749244f1738c9a2b123c609820f82d9e8907c756f5340/history/ > >> > >> > >> -- > >> Linaro LKFT > >> https://lkft.linaro.org > > -- > Chuck Lever > > > -- Sincerely yours, Mike.
