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Date:      Thu, 11 Jun 2026 05:09:07 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 295942] SSL_OP_ENABLE_KTLS_TX_ZEROCOPY_SENDFILE data corruption on files > 128KB
Message-ID:  <bug-295942-227-UWjnYmCU71@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-295942-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295942

--- Comment #7 from Dirk Meyer <dinoex@FreeBSD.org> ---
(In reply to Mark Johnston from comment #5)

> kern.ipc.tls.stats.failed_crypto: 1332
> kern.ipc.tls.stats.corrupted_records: 75

Unrelated, this counters did not change when testing.
Might be created from different jails and bad requests.

> Which crypto drivers are in use?

Hardware 1) 
# openssl engine
(rdrand) Intel RDRAND engine
(dynamic) Dynamic engine loading support

Hardware 2) 
# openssl engine
(dynamic) Dynamic engine loading support

> Do you have qat.ko loaded?

not loaded.

Please share "pciconf -lv" output.

Hardware 1)
Active igb0: checksum failed

em0@pci0:0:25:0:        class=0x020000 rev=0x04 hdr=0x00 vendor=0x8086
device=0x153a subvendor=0x15d9 subdevice=0x153a
    vendor     = 'Intel Corporation'
    device     = 'Ethernet Connection I217-LM'
    class      = network
    subclass   = ethernet
igb0@pci0:3:0:0:        class=0x020000 rev=0x03 hdr=0x00 vendor=0x8086
device=0x1533 subvendor=0x15d9 subdevice=0x1533
    vendor     = 'Intel Corporation'
    device     = 'I210 Gigabit Network Connection'
    class      = network
    subclass   = ethernet

Hardware 2)
Active igb0:

igb0@pci0:5:0:0:        class=0x020000 rev=0x01 hdr=0x00 vendor=0x8086
device=0x10c9 subvendor=0x15d9 subdevice=0x10c9
    vendor     = 'Intel Corporation'
    device     = '82576 Gigabit Network Connection'
    class      = network
    subclass   = ethernet
igb1@pci0:5:0:1:        class=0x020000 rev=0x01 hdr=0x00 vendor=0x8086
device=0x10c9 subvendor=0x15d9 subdevice=0x10c9
    vendor     = 'Intel Corporation'
    device     = '82576 Gigabit Network Connection'
    class      = network
    subclass   = ethernet

Hardware 3)
Active igb0: checksum failed

igb0@pci0:3:0:0:        class=0x020000 rev=0x03 hdr=0x00 vendor=0x8086
device=0x1533 subvendor=0x8086 subdevice=0x35bc
    vendor     = 'Intel Corporation'
    device     = 'I210 Gigabit Network Connection'
    class      = network
    subclass   = ethernet
igb1@pci0:4:0:0:        class=0x020000 rev=0x03 hdr=0x00 vendor=0x8086
device=0x1533 subvendor=0x8086 subdevice=0x35bc
    vendor     = 'Intel Corporation'
    device     = 'I210 Gigabit Network Connection'
    class      = network
    subclass   = ethernet

Hardware 4)  Tower, all checksum ok
re0@pci0:3:0:0: class=0x020000 rev=0x0c hdr=0x00 vendor=0x10ec device=0x8168
subvendor=0x1043 subdevice=0x8554
    vendor     = 'Realtek Semiconductor Co., Ltd.'
    device     = 'RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
Controller'
    class      = network
    subclass   = ethernet

Hardware 5)   Laptop, all checksum ok
re0@pci0:5:0:0: class=0x020000 rev=0x15 hdr=0x00 vendor=0x10ec device=0x8168
subvendor=0x103c subdevice=0x8978     
    vendor     = 'Realtek Semiconductor Co., Ltd.'
    device     = 'RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
Controller'
    class      = network
    subclass   = ethernet

Hardware 6)
Active em0: checksum failed
em0@pci0:0:31:6:        class=0x020000 rev=0x20 hdr=0x00 vendor=0x8086
device=0x15fc subvendor=0x1458 subdevice=0x1000
    vendor     = 'Intel Corporation'
    device     = 'Ethernet Connection (13) I219-V'
    class      = network
    subclass   = ethernet
igc0@pci0:174:0:0:      class=0x020000 rev=0x01 hdr=0x00 vendor=0x8086
device=0x15f3 subvendor=0x1458 subdevice=0x1000
    vendor     = 'Intel Corporation'
    device     = 'Ethernet Controller I225-V'
    class      = network
    subclass   = ethernet

Hardware 7)  checksum OK
em0@pci0:0:31:6:        class=0x020000 rev=0x21 hdr=0x00 vendor=0x8086
device=0x156f subvendor=0x1458 subdevice=0xe000
    vendor     = 'Intel Corporation'
    device     = 'Ethernet Connection I219-LM'
    class      = network
    subclass   = ethernet


Test;
Some machines have in /boot/loader.conf:
hw.em.rx_process_limit="-1"

But this does not have any effect on the problem here.


Test with/without promisc mode makes no change.

Test: with/without offloading makes no change.

igb0: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP>
metric 0 mtu 1500
otions=4e120bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,WOL_MAGIC,VLAN_HWFILTER,RXCSUM_IPV6,TXCSUM_IPV6,HWSTATS,MEXTPG>
options=802038<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,WOL_MAGIC,HWSTATS>

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