Hello, syzbot found the following issue on: HEAD commit: 0da0a8a0 Merge tag 'scsi-fixes' of git://git.kernel.org/pu.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1293e1f7500000 kernel config: https://syzkaller.appspot.com/x/.config?x=ee2266946ed36986 dashboard link: https://syzkaller.appspot.com/bug?extid=5d578be9b4bfe1b6bbd6 compiler: clang version 11.0.1 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5d578be9b4bfe1b6bbd6@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 15540 at mm/page_alloc.c:4977 __alloc_pages_nodemask+0x4e5/0x5a0 mm/page_alloc.c:5021 Modules linked in: CPU: 1 PID: 15540 Comm: syz-executor.2 Not tainted 5.11.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__alloc_pages_nodemask+0x4e5/0x5a0 mm/page_alloc.c:5021 Code: ab 09 00 e9 dd fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c eb fd ff ff 4c 89 ef e8 f4 aa 09 00 8b 74 24 18 e9 da fd ff ff <0f> 0b e9 f3 fd ff ff a9 00 00 08 00 75 16 8b 4c 24 1c 89 cb 81 e3 RSP: 0018:ffffc90016bff620 EFLAGS: 00010246 RAX: ffffc90016bff6a0 RBX: ffffc90016bff6a0 RCX: 0000000000000000 RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90016bff6c8 RBP: ffffc90016bff758 R08: dffffc0000000000 R09: ffffc90016bff6a0 R10: fffff52002d7fed9 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000018 R14: 1ffff92002d7fed0 R15: 0000000000040dc0 FS: 00007fc7102ae700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000749138 CR3: 0000000025dd7000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: alloc_pages include/linux/gfp.h:547 [inline] kmalloc_order+0x40/0x130 mm/slab_common.c:837 kmalloc_order_trace+0x15/0x70 mm/slab_common.c:853 kmalloc_large include/linux/slab.h:481 [inline] __kmalloc+0x257/0x330 mm/slub.c:3959 kmalloc_array+0x2d/0x40 include/linux/slab.h:593 kcalloc include/linux/slab.h:621 [inline] rds_rdma_extra_size+0x84/0x300 net/rds/rdma.c:568 rds_rm_size net/rds/send.c:928 [inline] rds_sendmsg+0xfad/0x3210 net/rds/send.c:1265 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x5a2/0x900 net/socket.c:2345 ___sys_sendmsg net/socket.c:2399 [inline] __sys_sendmsg+0x319/0x400 net/socket.c:2432 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e219 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc7102adc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219 RDX: 0000000000000000 RSI: 0000000020001600 RDI: 0000000000000003 RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007ffd4cf1c0cf R14: 00007fc7102ae9c0 R15: 000000000119bf8c --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
