[Bug 204119] New: scsi_mod: Could not allocate 4104 bytes percpu data

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https://bugzilla.kernel.org/show_bug.cgi?id=204119

            Bug ID: 204119
           Summary: scsi_mod: Could not allocate 4104 bytes percpu data
           Product: IO/Storage
           Version: 2.5
    Kernel Version: 5.2
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: SCSI
          Assignee: linux-scsi@xxxxxxxxxxxxxxx
          Reporter: jpalus@xxxxxxxxxxxx
        Regression: No

After upgrading to 5.2 scsi_mod fails to insert (CONFIG_X86_VSMP is not set):

Jul 09 09:50:25 localhost kernel: percpu: allocation failed, size=4104 align=32
atomic=0, alloc from reserved chunk failed
Jul 09 09:50:25 localhost kernel: CPU: 0 PID: 372 Comm: systemd-udevd Tainted:
G                T 5.2.0-0.1 #1
Jul 09 09:50:25 localhost kernel: Hardware name: System manufacturer System
Product Name/Z170-PRO, BIOS 3801 03/14/2018
Jul 09 09:50:25 localhost kernel: Call Trace:
Jul 09 09:50:25 localhost kernel:  dump_stack+0x5c/0x78
Jul 09 09:50:25 localhost kernel:  pcpu_alloc.cold.12+0x22/0x45
Jul 09 09:50:25 localhost kernel:  ? __vmalloc_node_range+0x1cf/0x240
Jul 09 09:50:25 localhost kernel:  load_module+0xd8f/0x2500
Jul 09 09:50:25 localhost kernel:  ? map_vm_area+0x38/0x50
Jul 09 09:50:25 localhost kernel:  ? __vmalloc_node_range+0x1cf/0x240
Jul 09 09:50:25 localhost kernel:  ? __se_sys_init_module+0x136/0x160
Jul 09 09:50:25 localhost kernel:  __se_sys_init_module+0x136/0x160
Jul 09 09:50:25 localhost kernel:  do_syscall_64+0x5b/0x130
Jul 09 09:50:25 localhost kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xa9
Jul 09 09:50:25 localhost kernel: RIP: 0033:0x7f3a5c452afe
Jul 09 09:50:25 localhost kernel: Code: 48 8b 0d 85 43 0c 00 f7 d8 64 89 01 48
83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00
00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 52 43 0c 00 f7 d8 64 89 01 48
Jul 09 09:50:25 localhost kernel: RSP: 002b:00007ffc9d2f6768 EFLAGS: 00000202
ORIG_RAX: 00000000000000af
Jul 09 09:50:25 localhost kernel: RAX: ffffffffffffffda RBX: 00000000008b5cf0
RCX: 00007f3a5c452afe
Jul 09 09:50:25 localhost kernel: RDX: 00007f3a5c7ae865 RSI: 000000000007f110
RDI: 00007f3a5a3c7010
Jul 09 09:50:25 localhost kernel: RBP: 00007f3a5c7ae865 R08: 000000000000005f
R09: 00000000008b5ab0
Jul 09 09:50:25 localhost kernel: R10: 00000000008a0010 R11: 0000000000000202
R12: 00007f3a5a3c7010
Jul 09 09:50:25 localhost kernel: R13: 00000000008a4000 R14: 0000000000020000
R15: 00000000008b5cf0
Jul 09 09:50:25 localhost kernel: scsi_mod: Could not allocate 4104 bytes
percpu data

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