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Tue, 22 Apr 2025 20:57:41 +1000 (AEST) Date: Tue, 22 Apr 2025 20:57:40 +1000 From: Stephen Rothwell To: Andrew Morton Cc: Libo Chen , Linux Kernel Mailing List , Linux Next Mailing List Subject: linux-next: runtime warning after merge of the mm-unstable tree Message-ID: <20250422205740.02c4893a@canb.auug.org.au> Precedence: bulk X-Mailing-List: linux-next@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/WxSkMf8qhQfFTFM/KrqR+ej"; protocol="application/pgp-signature"; micalg=pgp-sha256 --Sig_/WxSkMf8qhQfFTFM/KrqR+ej Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the mm-unstable tree, today's linux-next build (powerpcmpseries_le_defconfig) produced this warning: [ 0.000000][ T0] ------------[ cut here ]------------ [ 0.000000][ T0] WARNING: CPU: 0 PID: 0 at kernel/trace/trace_events.= c:596 trace_event_raw_init+0x1b0/0x6d0 [ 0.000000][ T0] Modules linked in: [ 0.000000][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.1= 5.0-rc3-05418-g16441530e08c #1 VOLUNTARY=20 [ 0.000000][ T0] Hardware name: IBM pSeries (emulated by qemu) POWER1= 0 (architected) 0x801200 0xf000006 of:SLOF,HEAD pSeries [ 0.000000][ T0] NIP: c0000000003efd30 LR: c0000000003f0140 CTR: 000= 0000000000000 [ 0.000000][ T0] REGS: c0000000028f7940 TRAP: 0700 Not tainted (6.= 15.0-rc3-05418-g16441530e08c) [ 0.000000][ T0] MSR: 8000000002021033 CR: = 44000288 XER: 00000000 [ 0.000000][ T0] CFAR: c0000000003f0144 IRQMASK: 3=20 [ 0.000000][ T0] GPR00: c0000000003f0140 c0000000028f7be0 c0000000018= 11100 0000000000000000=20 [ 0.000000][ T0] GPR04: 000000000000005b c000000001617716 00000000000= 00006 c0000000003efc7c=20 [ 0.000000][ T0] GPR08: c0000000014dd6a8 ffffffffffffffff 00000000000= 0005b 0000000000000000=20 [ 0.000000][ T0] GPR12: c0000000003efb80 c000000002aa8000 00000000000= 00000 00000000019e40b8=20 [ 0.000000][ T0] GPR16: 000000007e68eef8 0000000000000001 0000000002d= 500d0 00000000019e3f38=20 [ 0.000000][ T0] GPR20: 0000000000000093 c000000002654c03 00000000000= 00000 0000000000000093=20 [ 0.000000][ T0] GPR24: 0000000000000005 0000000000000000 00000000000= 00000 0000000000000020=20 [ 0.000000][ T0] GPR28: 0000000000000000 c000000002656c68 c0000000026= 54b70 00000000000000bb=20 [ 0.000000][ T0] NIP [c0000000003efd30] trace_event_raw_init+0x1b0/0x= 6d0 [ 0.000000][ T0] LR [c0000000003f0140] trace_event_raw_init+0x5c0/0x6= d0 [ 0.000000][ T0] Call Trace: [ 0.000000][ T0] [c0000000028f7be0] [c0000000003f0140] trace_event_ra= w_init+0x5c0/0x6d0 (unreliable) [ 0.000000][ T0] [c0000000028f7ca0] [c0000000003f2768] event_init+0x6= 8/0x100 [ 0.000000][ T0] [c0000000028f7d10] [c00000000203e62c] trace_event_in= it+0xfc/0x4ac [ 0.000000][ T0] [c0000000028f7e00] [c00000000203d4e0] trace_init+0x6= c/0x680 [ 0.000000][ T0] [c0000000028f7f30] [c0000000020042f8] start_kernel+0= x664/0x964 [ 0.000000][ T0] [c0000000028f7fe0] [c00000000000e99c] start_here_com= mon+0x1c/0x20 [ 0.000000][ T0] Code: 72d60001 7c8407b4 7c7e1a14 41820430 4bfffca9 2= c230000 41820010 3920fffe 7929c010 7f7b4838 2c3b0000 41820064 <0fe00000> 73= 690001 3be00001 40820014=20 [ 0.000000][ T0] ---[ end trace 0000000000000000 ]--- [ 0.000000][ T0] event sched_skip_cpuset_numa has unsafe dereference = of argument 6 [ 0.000000][ T0] print_fmt: "comm=3D%s pid=3D%d tgid=3D%d ngid=3D%d m= em_nodes_allowed=3D%*pbl", REC->comm, REC->pid, REC->tgid, REC->ngid, __nod= emask_pr_numnodes(REC->mem_allowed_ptr), __nodemask_pr_bits(REC->mem_allowe= d_ptr) Introduced by commit 516be5b3418e ("sched/numa: add tracepoint that tracks the skipping of num= a balancing due to cpuset memory pinning") --=20 Cheers, Stephen Rothwell --Sig_/WxSkMf8qhQfFTFM/KrqR+ej Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmgHdiQACgkQAVBC80lX 0GyoEwf/ZbK2ZhSxYNfKmcorobHtIUEXEqQCdJ0ZS/IPO4nfArIro+FDfumijs1g 7iwDhI6S63sKieYKaQpIRnIvWXlCHtYisvaLjBg1Hs+yv8W1yionOmJbycvRbNwV sxZf5+cNYtroMa5HMv5dfDSnyul9uU/btw3KXyWGRVwA0GQvkvEtz5ixztM+Bmfq k+cfhbXO3FZNdrMTU4s2ZvHSqtAhzfaG1ty1Jnsj2kNgL0lzqSwBm7U337LvEsc8 4AO6dcdAfqsofTxMIE0QVs1Hnd+wRmTVl0SBA3qylc4MgbjQdhDeOCTm1viizUrQ vSfMQ4O2aPzkPXBvpdpLxAvUhnQKsg== =LGgu -----END PGP SIGNATURE----- --Sig_/WxSkMf8qhQfFTFM/KrqR+ej--