netdev - kernel BUG at net/sunrpc/svc.c:570 after updating from v5.15.153 to v5.15.155

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Message-ID: <b363e394-7549-4b9e-b71b-d97cd13f9607@alliedtelesis.co.nz>
Date: Wed, 24 Apr 2024 00:54:24 +0000
From: Chris Packham <Chris.Packham@...iedtelesis.co.nz>
To: Jeff Layton <jlayton@...nel.org>, Chuck Lever <chuck.lever@...cle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: "linux-nfs@...r.kernel.org" <linux-nfs@...r.kernel.org>, netdev
	<netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "stable@...r.kernel.org"
	<stable@...r.kernel.org>
Subject: kernel BUG at net/sunrpc/svc.c:570 after updating from v5.15.153 to
 v5.15.155

Hi Jeff, Chuck, Greg,

After updating one of our builds along the 5.15.y LTS branch our testing 
caught a new kernel bug. Output below.

I haven't dug into it yet but wondered if it rang any bells.

Thanks,
Chris

[   91.605109] ------------[ cut here ]------------
[   91.605122] kernel BUG at net/sunrpc/svc.c:570!
[   91.605129] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
[   91.610643] Modules linked in: mvcpss(O) platform_driver(O) ipifwd(O) 
xt_l2tp xt_hashlimit xt_conntrack xt_addrtype xt_LOG xt_CHECKSUM wp512 
vxlan veth twofish_generic twofish_common sr9800 smsc95xx smsc75xx smsc 
sm3_generic sha512_arm64 sha3_generic serpent_generic rtl8150 
rpcsec_gss_krb5 rmd160 poly1305_generic plusb pegasus optee_rng nbd 
microchip md4 md_mod mcs7830 lrw libpoly1305 lan78xx l2tp_ip6 l2tp_ip 
l2tp_eth l2tp_netlink l2tp_core udp_tunnel ipt_REJECT nf_reject_ipv4 
ip6table_nat ip6table_mangle ip6table_filter ip6t_ipv6header ip6t_REJECT 
ip6_udp_tunnel ip6_tables dm9601 dm_zero dm_mirror dm_region_hash dm_log 
dm_mod diag tipc cuse cts cpufreq_powersave cpufreq_conservative 
chacha_generic chacha20poly1305 chacha_neon libchacha cast6_generic 
cast5_generic cast_common camellia_generic blowfish_generic 
blowfish_common auth_rpcgss oid_registry at25 arm_smccc_trng 
aes_neon_blk idprom_mtd(O) idprom_i2c(O) epi3_boardinfo_i2c(O) x250(O) 
psuslot_epi3_register(O) psuslot_gpio_group(O)
[   91.610809]  psuslot(O)
[   91.611822] watchdog: watchdog1: watchdog did not stop!
[   91.697065]  gpiopins_boardinfo(O) idprom(O) epi3_boardinfo(O) 
boardinfo(O) i2c_gpio i2c_algo_bit i2c_mv64xxx pluggable(O) 
led_enable(O) omap_rng rng_core atl_reset(O) sbsa_gwdt uio_pdrv_genirq
[   91.697096] CPU: 2 PID: 1770 Comm: nfsd Kdump: loaded Tainted: 
G           O      5.15.155 #1
[   91.697103] Hardware name: Allied Telesis x250-28XTm (DT)
[   91.697107] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS 
BTYPE=--)
[   91.697112] pc : svc_destroy+0x84/0xac
[   91.701202] watchdog: watchdog0: watchdog did not stop!
[   91.702215] lr : svc_destroy+0x2c/0xac
[   91.702220] sp : ffff80000bb3bde0
[   91.702223] x29: ffff80000bb3bde0 x28: 0000000000000000 x27: 
0000000000000000
[   91.746095] x26: 0000000000000000 x25: ffff00000dbfaa40 x24: 
ffff000016c14000
[   91.746101] x23: ffff800008395c00 x22: ffff00000ee9f284 x21: 
ffff00000eea9e10
[   91.746108] x20: ffff00000eea9e00 x19: ffff00000eea9e14 x18: 
ffff800008e99000
[   91.769526] x17: 0000000000000006 x16: 0000000000000000 x15: 
0000000000000001
[   91.776782] x14: 00000000fffffffd x13: fffffc0000000000 x12: 
ffff800076bc2000
[   91.784031] x11: ffff00007fba5c10 x10: ffff800076bc2000 x9 : 
ffff8000092207c0
[   91.784038] x8 : fffffc000055eb08 x7 : ffff00000ef6c4c0 x6 : 
fffffc0001f872c8
[   91.795823] x5 : 0000000000000100 x4 : ffff00007fbaeda8 x3 : 
0000000000000000
[   91.801684] x2 : 0000000000000000 x1 : ffff00000d8f8018 x0 : 
ffff00000eea9e30
[   91.807545] Call trace:
[   91.810088]  svc_destroy+0x84/0xac
[   91.813586]  svc_exit_thread+0x108/0x15c
[   91.816998]  nfsd+0x178/0x1a0
[   91.818673]  kthread+0x150/0x160
[   91.820610]  ret_from_fork+0x10/0x20
[   91.820620] Code: a94153f3 a8c27bfd d50323bf d65f03c0 (d4210000)
[   91.820629] SMP: stopping secondary CPUs
[   91.830433] Starting crashdump kernel...
[   91.833064] Bye!