Public bug reported:
During MAAS deployment:
[ 107.768146] Unable to handle kernel read from unreadable memory at
virtual address 0000000000000000
domain : maas [ 107.943413]
Mem abort info:
rootserver: 10.229.32.21 rootpath:
filename :[ 108.043666] ESR = 0x96000004
lpxelinux.0
:: root=squash:http://10.229.32.21:5248/images/ubu[ 108.147045] EC = 0x25:
DABT (current EL), IL = 32 bits
ntu/arm64/xgene-uboot/impish/stable/squashfs
:: mount_squash do[ 108.277541] SET = 0, FnV = 0
wnloading http://10.229.32.21:5248/images/ubuntu/arm64/xgene-ubo[ 108.380921]
EA = 0, S1PTW = 0
ot/impish/stable/squashfs to /root.tmp.img
Connecting to 10.229[ 108.485351] Data abort info:
.32.21:5248 (10.229.32.21:5248)
[ 108.586639] ISV = 0, ISS = 0x00000004
[ 108.667060] CM = 0, WnR = 0
[ 108.702635] user pgtable: 4k pages, 48-bit VAs, pgdp=000000401ce02000
root.tmp.img [ 108.779941] [0000000000000000] pgd=0000000000000000,
p4d=0000000000000000
4% [ 108.884372] Internal error: Oops: 96000004 [#1] SMP
[ 108.948102] Modules linked in: raid10 raid456 async_raid6_recov async_memcpy
async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1 raid0
multipath linear mlx4_ib ib_uverbs ib_core mlx4_en mlx4_core gpio_keys_polled
gpio_dwapb crct10dif_ce ahci_xgene gpio_xgene_sb aes_neon_bs aes_neon_blk
crypto_simd cryptd
[ 109.286243] CPU: 0 PID: 11 Comm: ksoftirqd/0 Not tainted 5.13.0-20-generic
#20-Ubuntu
[ 109.380233] Hardware name: HP ProLiant m400 Server Cartridge (DT)
[ 109.453258] pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--)
[ 109.525342] pc : mlx4_en_poll_rx_cq+0xb4/0x17c [mlx4_en]
[ 109.589087] lr : mlx4_en_poll_rx_cq+0x7c/0x17c [mlx4_en]
[ 109.652828] sp : ffff8000129cbc60
[ 109.692470] x29: ffff8000129cbc60 x28: 000000000000012c x27: ffff000ff7e95fc0
[ 109.778115] x26: 00000000ffffffff x25: ffff000020908508 x24: ffff000021b40940
[ 109.863763] x23: ffff000020908508 x22: ffff000020908400 x21: ffff000021b40000
[ 109.949409] x20: 0000000000000040 x19: 0000000000000040 x18: 0000000000000014
[ 110.035056] x17: 000000001122e350 x16: 00000000cb46f8bb x15: 00000000e2b6a183
[ 110.120703] x14: 0000000026fff11e x13: 000000009312ff0b x12: 0000000000000000
[ 110.206349] x11: 0000000000000006 x10: 0000000000000040 x9 : ffff800009119320
[ 110.291997] x8 : ffff000008acdc00 x7 : 00000000000002c0 x6 : 00000000ffffdff8
[ 110.377642] x5 : ffff000003940000 x4 : ffff000003960040 x3 : ffff000021c20000
[ 110.463289] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
[ 110.548937] Call trace:
[ 110.578147] mlx4_en_poll_rx_cq+0xb4/0x17c [mlx4_en]
[ 110.637719] __napi_poll+0x40/0x1e0
[ 110.679551] net_rx_action+0x2d8/0x34c
[ 110.724513] __do_softirq+0x128/0x388
[ 110.768432] run_ksoftirqd+0x6c/0x94
[ 110.811308] smpboot_thread_fn+0x15c/0x1a0
[ 110.860443] kthread+0x114/0x120
[ 110.899145] ret_from_fork+0x10/0x18
[ 110.942024] Code: 1100fc41 1a82b021 13067c21 93407c21 (f8617800)
[ 111.015158] ---[ end trace b37ae99414884442 ]---
[ 111.070550] Kernel panic - not syncing: Oops: Fatal exception in interrupt
[ 111.152964] SMP: stopping secondary CPUs
[ 111.200016] Kernel Offset: 0x80000 from 0xffff800010000000
[ 111.265837] PHYS_OFFSET: 0x4000000000
[ 111.309651] CPU features: 0x00000251,00000046
[ 111.361915] Memory Limit: none
[ 111.398431] ---[ end Kernel panic - not syncing: Oops: Fatal exception in
interrupt ]---
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Affects: linux (Ubuntu Impish)
Importance: Undecided
Status: Incomplete
** Tags: impish
** Also affects: linux (Ubuntu Impish)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1952933
Title:
impish kernel crashes on hp m400 in mlx4_en_poll_rx_cq
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