Hi The patch 23272a6754b81ff6503e09c743bb4ceeeab39997 (nbd: Remove signal usage) triggers a warning in nbd when the network block device is unloaded - WARN_ON_ONCE(in_irq() || irqs_disabled()) in the function __local_bh_enable_ip. The reason for the warning is that the function kernel_sock_shutdown is called with interrupts disabled.
block nbd0: NBD_DISCONNECT block nbd0: shutting down socket ------------[ cut here ]------------ WARNING: CPU: 10 PID: 11939 at kernel/softirq.c:150 __local_bh_enable_ip+0x66/0x90 Call Trace: [<ffffffff8122dde3>] ? dump_stack+0x46/0x63 [<ffffffff81050f57>] ? __warn+0xe7/0x100 [<ffffffff810555f6>] ? __local_bh_enable_ip+0x66/0x90 [<ffffffff813e2ddf>] ? inet_shutdown+0x3f/0x120 [<ffffffffa00693b0>] ? sock_shutdown+0x40/0x80 [nbd] [<ffffffffa006a228>] ? __nbd_ioctl+0x5b8/0xa40 [nbd] [<ffffffffa19cc169>] ? soft_cursor+0x169/0x1e6 [softcursor] [<ffffffffa19e37ed>] ? bit_cursor+0x59d/0x5d0 [bitblit] [<ffffffffa19e8801>] ? cursor_timer_handler+0x11/0x40 [fbcon] [<ffffffff8108dd6d>] ? up+0xd/0x50 [<ffffffff81092ba6>] ? console_unlock+0x216/0x580 [<ffffffff8108c168>] ? remove_wait_queue+0x18/0x60 [<ffffffff812a6dca>] ? n_tty_write+0x24a/0x460 [<ffffffff811f7cec>] ? security_capable+0x3c/0x50 [<ffffffffa006a717>] ? nbd_ioctl+0x67/0x99 [nbd] [<ffffffff8121d2d9>] ? blkdev_ioctl+0x649/0xa70 [<ffffffff81160c2e>] ? __vfs_write+0x1e/0xe0 [<ffffffff811789c2>] ? dput+0x42/0x2b0 [<ffffffff81199e14>] ? block_ioctl+0x34/0x40 [<ffffffff81174806>] ? do_vfs_ioctl+0x96/0x5b0 [<ffffffff81161c31>] ? vfs_write+0x131/0x190 [<ffffffff81174db1>] ? SyS_ioctl+0x91/0xa0 [<ffffffff81402e1f>] ? entry_SYSCALL_64_fastpath+0x17/0x93 ---[ end trace 1956420c2e5f102b ]--- block nbd0: Receive control failed (result -32) Mikulas ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Nbd-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nbd-general
